Category: Commercial Electrical

  • New Machinery Electrical Installation: Why Involve an Electrician Before It Arrives?

    Planning a new machinery electrical installation should begin well before the equipment arrives at your factory or workshop.

    Whether you are investing in a CNC machine, laser cutter, compressor, production equipment or another piece of specialist machinery, the electrical requirements need to be considered alongside the machine itself.

    A new machine arriving on site does not necessarily mean it can simply be positioned, connected and switched on. Different machinery can have very different electrical requirements, and your existing installation may need alterations before the equipment can be commissioned.

    Involving a commercial or industrial electrician before the machinery arrives can identify potential problems early and help avoid unnecessary delays to installation and production.

    1. Check the Electrical Requirements Before Ordering

    Ideally, your electrician should have access to the manufacturer’s electrical specifications as early as possible.

    Important information can include:

    • supply voltage
    • single-phase or three-phase requirements
    • maximum current or electrical load
    • starting current
    • recommended protective devices
    • isolation requirements
    • connection method
    • requirements for associated equipment

    HSE guidance recommends considering where and how machinery will be used before purchasing it, while electrical equipment should be suitable for the electrical supply it will be connected to.

    The existing supply also needs to be capable of providing the current required by the equipment.

    Finding this out before delivery gives you time to make any necessary electrical alterations.

    2. Does Your Existing Electrical Installation Have Enough Capacity?

    The fact that a building already has three-phase power doesn’t automatically mean there is sufficient capacity for another substantial electrical load.

    An electrician can assess the existing installation and consider factors such as:

    • incoming electrical supply
    • existing loads
    • available capacity
    • distribution boards
    • protective devices
    • existing cable sizes and routes
    • the proposed machinery load

    If additional capacity or alterations are required, these can then be planned before the machine is installed.

    This becomes particularly important when a business has expanded gradually. Additional machinery, air conditioning, compressors, EV chargers and other equipment can all increase demand on an electrical installation over time.

    3. Single-Phase or Three-Phase?

    Many larger pieces of industrial machinery require a three-phase electrical supply.

    Three-phase power is commonly used for equipment such as CNC machinery, compressors, motors, production equipment and other higher-powered industrial loads.

    If the required supply is not already available in the correct location, electrical work may be needed to provide it.

    Even where three-phase power is present elsewhere in the building, the machine may require a new circuit, local distribution alterations or a dedicated supply to its proposed position.

    This is why knowing exactly where the machine is going can be just as important as knowing its electrical specification.

    4. Is the Distribution Board Suitable?

    The existing distribution board also needs to be considered.

    There may be insufficient spare capacity, or alterations may be required to provide the correct circuit and protection for the new equipment.

    Depending on the installation and manufacturer’s requirements, the work could involve:

    • new circuits
    • distribution board alterations
    • new protective devices
    • additional local distribution
    • new cable routes
    • local isolation

    Assessing this beforehand allows the electrical work to be coordinated with the machinery delivery rather than becoming an unexpected obstacle afterwards.

    5. Think About More Than the Machine Itself

    The main machine may not be the only new electrical load.

    Associated equipment could include:

    • extraction systems
    • compressors
    • pumps
    • cooling or ventilation equipment
    • control equipment
    • ancillary production machinery

    These additional requirements should form part of the electrical planning.

    A machine might therefore require one supply while its extraction, cooling or other supporting equipment requires another.

    6. Positioning the Machine Can Affect the Electrical Work

    Where the machinery will sit within the factory or workshop can have a significant effect on the installation.

    An electrician may need to consider how power will reach the machine, where isolation will be located and whether existing electrical infrastructure needs to be altered.

    Planning this before delivery can also make it easier to coordinate the electrical contractor with machinery suppliers, installers and other trades.

    Once several tonnes of machinery have been positioned on a factory floor, changing the plan can become considerably more difficult.

    7. Don’t Forget Safe Isolation, Testing and Commissioning

    Industrial machinery needs to be properly connected and capable of being safely isolated.

    HSE guidance under PUWER states that work equipment should have suitable health and safety measures, including adequate means of isolation from sources of energy where appropriate. Where the safety of equipment depends on how it has been installed, inspection is required after installation and before first use.

    For electrical installation work, the new or altered circuit should also be appropriately inspected, tested and verified before being put into service.

    This is another reason why machinery installation should be considered as a planned project rather than simply connecting equipment when it arrives.

    A Real Example: New Laser Machinery at Camberley Signs

    LS Electrical supported Camberley Signs when the company replaced the main laser machine within its workshop.

    The new laser had different electrical load and supply requirements from the previous equipment. Our electricians safely disconnected the old machine and altered the electrical installation ready for the replacement.

    Once the new laser was in position, LS Electrical returned to complete the final connections, including the three-phase extraction system, followed by the appropriate electrical testing and verification.

    It is a good example of why involving your electrician before new machinery arrives can help identify requirements in advance and minimise disruption during installation.

    Read the Camberley Signs Case Study →

    The Cost of Planning Is Small Compared With the Cost of a Delay

    After making a significant investment in new machinery, the last thing a business wants is for it to arrive and then discover that the electrical infrastructure isn’t ready.

    Potential problems could include an inadequate supply, no suitable circuit at the machine location, insufficient distribution capacity or additional electrical requirements that weren’t considered when the equipment was ordered.

    Early electrical involvement means these issues can be identified while there is still time to deal with them.

    Before Your New Machinery Arrives, Ask:

    • Do we have the manufacturer’s full electrical specification?
    • Is it single-phase or three-phase?
    • Does our existing supply have sufficient capacity?
    • Is the distribution board suitable?
    • Does the machine require a dedicated circuit?
    • What isolation is required?
    • Does extraction, cooling or ancillary equipment require separate supplies?
    • Where exactly will the machine be positioned?
    • Can the electrical work be completed before delivery?
    • Who will complete the final electrical connection, testing and verification?

    Planning a New Machinery Installation?

    LS Electrical provides commercial and industrial electrical services for businesses across Hampshire, Surrey and Berkshire, including electrical supplies for new machinery, three-phase power, distribution alterations, machinery relocations and factory electrical installations.

    Getting us involved early means we can review the electrical requirements, assess the existing installation and identify any work that may be required before your new equipment arrives on site.

    Planning new machinery or production equipment?

    Speak to LS Electrical before delivery so we can help make sure your electrical installation is ready.
  • Commercial Battery Storage & BS 7671 Amendment 4: What Landlords and Facility Managers Need to Know

    Commercial Battery Storage & BS 7671 Amendment 4: What Landlords and Facility Managers Need to Know

    Commercial Battery Storage & BS 7671 – Commercial battery storage is becoming increasingly common as businesses look to store solar energy, reduce peak electricity costs and make better use of lower-cost electricity tariffs.

    This growth is reflected in the latest update to the IET Wiring Regulations (BS 7671).

    Published in April 2026, BS 7671:2018+A4:2026 – Amendment 4 to the 18th Edition Wiring Regulations introduces a new Chapter 57 covering stationary secondary batteries used for the storage and supply of electrical installations.

    For commercial landlords, facilities managers and industrial businesses, the changes are particularly relevant when planning a new battery installation, altering an existing electrical installation or undertaking electrical inspection and testing.

    Commercial Battery Storage & BS 7671 Amendment 4

    What Is Chapter 57 of BS 7671?

    Chapter 57 reflects the increasing use of battery energy storage systems within electrical installations.

    Unlike conventional electrical loads, battery systems can both receive electricity and supply it back into an installation. This means the electrical design needs to take account of bidirectional energy flow as well as the characteristics of the battery system itself.

    The new requirements address areas including:

    • battery system design and characteristics;
    • power conversion equipment;
    • bidirectional and hybrid inverters;
    • suitability of electrical protective devices;
    • battery location;
    • ventilation; and
    • fire-risk mitigation.

    For relevant requirements within BS 7671, stationary batteries covered by Chapter 57 are considered as a generating set rather than simply an electrical load.

    What Changes on 15 October 2026?

    Amendment 4 was published on 15 April 2026 and can already be used.

    There is, however, a six-month transition period.

    The previous version of BS 7671 – BS 7671:2018+A2:2022+A3:2024 – is withdrawn on 15 October 2026, after which Amendment 4 becomes the current version.

    This is particularly relevant for electrical inspection and testing. NICEIC has confirmed that Electrical Installation Condition Reports (EICRs) will need to be carried out against Amendment 4 from 15 October 2026.

    Do Existing Battery Installations Need Upgrading?

    Not automatically.

    BS 7671 is not retrospective. An electrical installation that complied with an earlier edition of the Wiring Regulations does not automatically become unsafe or require upgrading simply because a newer edition has been published.

    However, Amendment 4 becomes important when designing new installations, installing battery storage, making additions or alterations to an existing installation, or undertaking periodic inspection and testing.

    For landlords and facilities managers with an existing battery system, particularly where documentation is limited or further electrical work is planned, this may be a sensible opportunity to review the wider electrical installation.

    What Does Chapter 57 Mean for Commercial and Industrial Properties?

    Battery storage needs to be considered as part of the complete electrical installation, rather than simply as a standalone piece of equipment.

    For commercial and industrial properties, considerations may include:

    • the condition and capacity of existing distribution equipment;
    • electrical protection and isolation;
    • cable capacity and electrical loading;
    • earthing arrangements;
    • existing onsite generation such as solar PV;
    • battery location;
    • appropriate ventilation and fire-risk mitigation; and
    • how electricity will flow through the installation.

    The appropriate requirements will depend on the battery technology, manufacturer’s instructions, system design and the building in which it is being installed.

    This can be particularly important in older commercial or industrial premises where the electrical infrastructure was designed long before onsite generation and large-scale battery storage were envisaged.

    Planning Commercial Battery Storage?

    If your business is considering battery storage, assessing the existing electrical infrastructure early in the project can identify potential limitations before equipment is installed.

    For example, alterations may be required to distribution equipment, electrical protection, isolation or other parts of the installation to accommodate the proposed system.

    The same principle applies where businesses are planning several electrification projects together, such as solar PV, battery storage, workplace EV charging or additional electrical machinery.

    Considering these requirements as part of an overall electrical strategy can help avoid unnecessary alterations later.

    Combining Commercial Solar and Battery Storage

    Battery storage is increasingly installed alongside commercial solar PV.

    Electricity generated by solar panels during the day can be stored and used later, potentially increasing the amount of onsite renewable electricity a business can use itself.

    For businesses considering commercial solar panels and battery storage, our associated renewable energy company, UK Green Energy Installations (UKGEI), provides specialist commercial renewable energy design and installation across Surrey, Hampshire and Berkshire.

    Considering Commercial Solar & Battery Storage?

    Our sister renewable energy company, UK Green Energy Installations (UKGEI), designs and installs commercial solar PV and battery storage solutions for businesses across Surrey, Hampshire and Berkshire.

    Learn More About Commercial Solar & Battery Storage →

    LS Electrical can support renewable energy projects where alterations, upgrades or other work to the commercial electrical infrastructure are required.

    Commercial Electrical Inspections and Infrastructure Upgrades

    At LS Electrical, we provide commercial and industrial electrical installation, testing, maintenance and infrastructure upgrades across Surrey, Hampshire and Berkshire.

    With more than 30 years’ experience, we can assess existing commercial electrical installations and undertake electrical works required to support changing business requirements, including:

    • commercial and industrial electrical installations;
    • three-phase power and distribution;
    • electrical alterations and upgrades;
    • commercial EICRs;
    • machinery and equipment supplies; and
    • electrical infrastructure supporting renewable energy projects.

    If you’re planning battery storage, expanding an existing electrical installation or want to establish whether your current infrastructure is suitable for future projects, contact LS Electrical to discuss your requirements.

    Contact LS Electrical

    Frequently Asked Questions

    When does BS 7671 Amendment 4 come into effect?

    BS 7671:2018+A4:2026 was published on 15 April 2026 and can already be used. The previous version of BS 7671 is withdrawn on 15 October 2026, after which Amendment 4 becomes the current version.

    Do existing commercial battery installations need to comply with Amendment 4?

    Existing installations do not automatically require upgrading simply because Amendment 4 has been introduced. BS 7671 is not retrospective. However, the current requirements become relevant when new work, additions, alterations or periodic electrical inspection and testing are undertaken.

    Does Chapter 57 apply to commercial battery storage?

    Chapter 57 covers stationary secondary battery installations where their designed purpose is the storage and supply of electrical installations. There are exclusions for certain batteries incorporated into products or systems covered by appropriate product standards.

    Further Information

    For authoritative information about Amendment 4 and the latest edition of BS 7671, visit the Institution of Engineering and Technology (IET):

    BS 7671 – 18th Edition IET Wiring Regulations

    This article provides general information about BS 7671:2018+A4:2026. Requirements vary according to the individual electrical installation, equipment and circumstances, and the information above should not be treated as a substitute for project-specific electrical design or professional advice.

  • How to Choose the Right Commercial Electrician for Your Business

    How to Choose the Right Commercial Electrician for Your Business isn’t just about finding someone who can complete the job in front of you. For most businesses, the better choice is an electrical contractor that can support the premises today and in the years ahead.

    From routine electrical maintenance and EICRs to three-phase power, machinery supplies, lighting upgrades and larger installations, having one trusted electrical company that understands your premises can make managing your electrical infrastructure considerably easier.

    So, what should you look for when choosing a commercial electrician?

    1. How Do You Choose the Right Commercial Electrician for Your Business

    Commercial electrical requirements rarely remain the same.

    You might initially need an additional circuit or distribution board alteration, but six months later require an EICR, emergency lighting work, a new three-phase supply or electrical infrastructure for new machinery.

    Look for a contractor capable of supporting a broad range of commercial and industrial electrical requirements, including:

    • Commercial electrical installations
    • Electrical alterations and upgrades
    • Commercial EICRs and fixed wire testing
    • Three-phase power
    • Distribution boards and electrical infrastructure
    • Machinery and equipment power supplies
    • LED and commercial lighting
    • Emergency lighting
    • Fault finding and repairs
    • Planned electrical maintenance
    • EV charging and renewable energy electrical infrastructure

    Choose the right commercial electrician for your business that has broad in-house capabilities can reduce the need to find a different electrician every time your requirements change.

    Commercial Electrical Maintenance
    How Do You Choose the Right Commercial Electrician for Your Business

    2. Don’t Automatically Choose a Contractor That Subcontracts Everything

    It’s worth asking who will actually be carrying out the work.

    Some businesses win a contract and then subcontract much of the electrical work to other companies.

    There are circumstances where specialist subcontractors are appropriate, but relying on multiple different contractors can mean different engineers, different working practices and less continuity. So it is worth considering how much is going to be subcontracted out when you choose the right commercial electrician for your business.

    Working directly with one commercial electrical contractor can also help control costs. Where work is routinely subcontracted, additional management, coordination or contractor margins may be built into the overall cost. A contractor with broad in-house capabilities can potentially provide a more direct and cost-effective service, while also reducing the time your own team spends coordinating multiple suppliers.

    A commercial electrician with its own experienced team can provide much greater consistency.

    You know who is coming to site – and they know you.

    3. Do Value a Contractor That Gets to Know Your Business

    There is a significant advantage to developing a long-term relationship with one electrical contractor.

    Over time, your electrician becomes familiar with your:

    • Site and electrical infrastructure
    • Distribution arrangements
    • Machinery and equipment
    • Previous installations and alterations
    • Operational requirements
    • Access procedures
    • Safety requirements
    • Key personnel
    • Production schedules and working hours

    That knowledge can become particularly valuable when something goes wrong.

    Instead of explaining your site from scratch to a new contractor, you’re dealing with a company that already understands how your business operates.

    Why Long-Term Relationships Matter

    One of the biggest advantages of working with the same commercial electrician is that they get to know your premises, your electrical infrastructure and the way your business operates.

    A good example is Camberley Signs, who have worked with LS Electrical for more than 20 years. When they invested in a new laser machine, LS Electrical was their natural choice to carry out the electrical installation.

    That continuity means less time explaining your site to new contractors, greater consistency and a trusted electrical partner that already understands your business.

    Read the Camberley Signs Case Study →

    4. Don’t Choose on Price Alone

    The cheapest quotation isn’t necessarily the best-value option.

    For commercial and industrial businesses, electrical work can affect safety, compliance, productivity and business continuity.

    Consider the wider value of the contractor, including experience, qualifications, responsiveness, quality of workmanship and their ability to support your business after the original job has been completed.

    A slightly cheaper installation can quickly become expensive if another contractor has to return later to rectify or understand it.

    5. Do Choose a Local Commercial Electrician

    Location matters more than many businesses realise.

    A commercial electrician based within your region can often provide faster and more practical ongoing support than a contractor travelling considerable distances to reach you.

    This becomes particularly important when you have:

    • An electrical fault
    • Production downtime
    • A failed circuit
    • Machinery that cannot operate
    • An urgent electrical alteration
    • An unexpected problem discovered during maintenance

    For businesses in Hampshire, Surrey and Berkshire, choosing an established local electrical contractor can provide the reassurance that help isn’t hundreds of miles away.

    6. Do Check Their Commercial AND Industrial Experience

    Domestic and commercial electrical work can be very different.

    Warehouses, factories, engineering businesses, workshops and manufacturing facilities can have considerably more complex electrical requirements than residential properties.

    If your business operates machinery or specialist equipment, look for an electrician experienced with areas such as three-phase electrical systems, industrial distribution, machinery supplies and commercial electrical infrastructure.

    7. Don’t Wait Until Something Goes Wrong

    One of the best times to choose your commercial electrician is before you urgently need one.

    Building a relationship through planned maintenance, testing and smaller electrical projects means you already have a trusted contractor to contact when an unexpected problem occurs.

    Planned commercial electrical maintenance can also help identify deterioration and potential faults before they result in disruption.

    8. Do Check Qualifications, Accreditations and Insurance

    Always check that your electrical contractor is appropriately qualified and insured for the work they undertake.

    For example, LS Electrical is an NICEIC-approved contractor, providing additional reassurance that work is carried out to recognised industry standards.

    For commercial premises, documentation, testing and certification can be every bit as important as the physical installation itself.

    9. Do Think About Your Future Requirements

    Your electrical contractor should be able to support where your business is going – not simply where it is today.

    You may be considering:

    • New machinery
    • Additional production equipment
    • Three-phase upgrades
    • Warehouse expansion
    • Office refurbishment
    • LED lighting
    • Additional power and data
    • EV charging
    • Solar panels
    • Battery storage
    • Air-conditioning electrical supplies

    Having a contractor that understands both your existing installation and your future plans can make expansion considerably easier.

    Choose the Right Commercial Electrician for Your Business – Dos & Don’ts

    ✓ DO ✕ DON’T
    Choose an electrician with broad commercial and industrial experience. Don’t assume every electrician has experience working in commercial or industrial environments.
    Look for a contractor that can provide a complete range of electrical services. Don’t use a different contractor for every electrical requirement if you can avoid it.
    Choose a local company that can provide ongoing support when you need it. Don’t overlook how important response times can be when an electrical problem affects your business.
    Check qualifications, accreditations, insurance and relevant experience. Don’t choose a commercial electrician purely on the cheapest quotation.
    Ask who will actually be carrying out the electrical work. Don’t assume the company you appoint will necessarily carry out all the work themselves.
    Build a long-term relationship with a contractor that gets to know your business and premises. Don’t wait until an electrical failure or emergency before finding a company you trust.

    One Electrical Contractor. One Point of Contact.

    For many businesses, the ideal relationship isn’t finding an electrician for a single job. It’s to choose the right commercial electrician for your business that becomes an extension of your business!

    At LS Electrical, we have supported commercial and industrial customers across Hampshire, Surrey and Berkshire for more than 30 years.

    Our aim is to provide businesses with one reliable point of contact for their electrical requirements – from everyday alterations and maintenance through to commercial testing, three-phase installations, machinery supplies and larger electrical projects.

    And because we get to know our customers, their premises and their electrical infrastructure, we’re in a much better position to support them as their businesses develop.

    Looking To Choose the Right Commercial Electrician for Your Business?

    If you’re looking for a reliable commercial electrical contractor for a one-off project or would like to establish a long-term relationship with an electrician that can support your business, contact LS Electrical to discuss your requirements.

    CONTACT LS ELECTRICAL
  • The Hidden Cost of Electrical Downtime: How Preventative Electrical Maintenance Keeps Your Business Running

    The Hidden Cost of Electrical Downtime: How Preventative Electrical Maintenance Keeps Your Business Running

    Electrical downtime is one of the most expensive and disruptive problems a business can experience. Whether you operate a manufacturing facility, warehouse, engineering workshop, office or commercial premises, even a short loss of power can have significant financial consequences.

    The hidden cost of electrical downtime is often far greater than the cost of the electrical fault itself. For many businesses across Surrey, Hampshire and Berkshire, the true impact extends beyond the repair, with lost production, delayed deliveries, idle staff, damaged equipment and unhappy customers quickly outweighing the cost of preventative electrical maintenance.

    At LS Electrical, we help businesses reduce the risk of unexpected electrical failures through professional inspections, planned maintenance, electrical upgrades and rapid response support, helping keep your business operational and productive.

    The Hidden Cost of Electrical Downtime

    What Is Electrical Downtime?

    Electrical downtime occurs whenever part or all of your electrical system prevents normal business operations. The Hidden Cost of Electrical Downtime often extends far beyond the immediate repair, affecting productivity, delivery schedules, staff efficiency and ultimately your bottom line.

    This could include:

    • Distribution board failures
    • Three-phase power faults
    • Overloaded electrical circuits
    • Tripped protective devices
    • Equipment power failures
    • Damaged cabling
    • Failing switchgear
    • Faulty control panels
    • Emergency lighting failures
    • Unexpected power outages

    While some failures happen without warning, many develop gradually due to ageing equipment, loose electrical connections, inadequate maintenance or components approaching the end of their service life over months or even years and show early signs before becoming a major problem.

    The True Cost of Electrical Downtime

    Many businesses focus solely on the repair cost.

    In reality, the repair is often the smallest expense.

    The hidden costs can include:

    Lost Production

    For manufacturing businesses, every minute of downtime can reduce productivity and delay customer orders.

    Production schedules are disrupted, machines stand idle and operators wait while faults are investigated.

    Staff Downtime

    Employees remain on the payroll whether production is running or not.

    Electricians may only need two hours to repair a fault, but the loss of productive hours across an entire workforce can be far greater.

    Missed Customer Deadlines

    Late deliveries can damage customer relationships that have taken years to build.

    Repeated delays may result in lost contracts or financial penalties.

    Emergency Repair Costs

    Emergency call-outs often involve:

    • Out-of-hours labour
    • Temporary repairs
    • Replacement components
    • Production disruption
    • Additional contractor costs

    These costs are usually significantly higher than planned maintenance.

    Equipment Damage

    Electrical faults don’t just stop equipment.

    They can damage:

    • CNC machinery
    • Compressors
    • Production lines
    • HVAC systems
    • IT infrastructure
    • Automation equipment
    • Variable speed drives

    Protecting expensive equipment is often reason enough to invest in preventative maintenance.

    Common Causes of Electrical Downtime

    Many electrical failures share similar causes.

    Ageing Distribution Boards

    Older distribution boards may no longer provide the protection required for today’s electrical loads.

    Signs include:

    • Frequent tripping
    • Overheating
    • Corrosion
    • Limited spare capacity
    • Obsolete protective devices

    A distribution board upgrade can significantly improve both reliability and safety.

    Overloaded Circuits

    Businesses evolve.

    Additional machinery, air conditioning, EV chargers and new production equipment often increase electrical demand.

    Without reviewing the existing installation, circuits may become overloaded.

    Loose Electrical Connections

    Loose electrical connections are one of the most common causes of unexpected electrical faults and a significant contributor to The Hidden Cost of Electrical Downtime. Over time, vibration, heat and general wear can cause terminals to loosen, creating resistance that generates excessive heat.

    Regular electrical inspections can identify these issues before they develop into equipment failure, production delays or an unplanned shutdown, helping businesses avoid costly disruption and maintain operational continuity.

    Poor Preventative Maintenance

    Electrical systems require regular maintenance to remain safe, reliable and efficient. Dust, vibration, moisture and everyday use all contribute to wear over time, increasing the risk of faults and The Hidden Cost of Electrical Downtime if problems go unnoticed.

    A planned preventative electrical maintenance programme helps identify potential issues before they interrupt your business, reducing the risk of costly emergency repairs, production delays and unexpected downtime while helping maintain business continuity.

    Why Preventative Maintenance Makes Financial Sense

    The cost of planned electrical maintenance is often a fraction of the cost of an unexpected failure.

    By carrying out regular inspections, testing and servicing, businesses can:

    • Reduce unplanned downtime
    • Improve electrical safety
    • Extend the life of electrical equipment
    • Reduce emergency repair costs
    • Improve business continuity
    • Help maintain compliance with current electrical regulations

    For many businesses, preventing just one electrical failure can more than cover the cost of an annual maintenance programme.

    Power outages aren’t always caused by electrical faults.

    Grid interruptions can also bring production to a halt. For businesses where continuity is critical, battery energy storage systems can provide backup power and keep essential equipment running during an outage. Our sister company, UK Green Energy Installations, specialises in commercial battery storage solutions.

    Ready to Reduce Electrical Downtime?

    Understanding The Hidden Cost of Electrical Downtime is only the first step. The most effective way to reduce the risk of unexpected electrical failures is through a planned preventative maintenance programme.

    LS Electrical provides commercial electrical maintenance, Commercial EICRs (Fixed Wire Testing), three-phase electrical services, distribution board inspections, fault finding and preventative maintenance for businesses across Surrey, Hampshire and Berkshire.

    Learn more about our Commercial Electrical Maintenance services
    CONTACT US

    Frequently Asked Questions

    What is electrical downtime?

    Electrical downtime is any period when an electrical fault prevents a business from operating normally. It may be caused by power failures, distribution board faults, overloaded circuits, damaged cabling or equipment failure. The Hidden Cost of Electrical Downtime can extend beyond the repair itself to include lost production, idle staff, delayed orders and customer disruption.

    How can businesses reduce electrical downtime?

    Businesses can reduce electrical downtime through planned preventative electrical maintenance. Regular Commercial EICRs (Fixed Wire Testing), distribution board inspections, fault finding and routine servicing can identify developing problems before they cause an unexpected shutdown.

    Is preventative electrical maintenance worth the cost?

    Yes. Preventative electrical maintenance is usually far less expensive than emergency call-outs, lost production, delayed customer orders and damaged equipment. Preventing just one unexpected electrical failure may more than cover the cost of planned maintenance and significantly reduce The Hidden Cost of Electrical Downtime for your business.

    What are the warning signs of electrical problems in commercial buildings?

    Common warning signs include circuit breakers regularly tripping, flickering lighting, overheating distribution boards, burning smells, buzzing electrical equipment and machinery unexpectedly stopping. These issues should be investigated promptly by a qualified commercial electrician.

    Does LS Electrical provide commercial electrical maintenance?

    Yes. LS Electrical provides commercial and industrial electrical maintenance, Commercial EICRs (Fixed Wire Testing), three-phase electrical services, distribution board upgrades and fault finding for businesses across Surrey, Hampshire and Berkshire.

  • Single-Phase vs Three-Phase Power: What’s the Difference for UK Businesses?

    Single-Phase vs Three-Phase – if you’re planning to expand your business, install new machinery or simply wondering whether your existing electrical supply is sufficient, you’ve probably come across the terms single-phase and three-phase power.

    Understanding the difference between single-phase vs three-phase power for UK businesses can help you make informed decisions, avoid costly delays and ensure your premises are ready for future growth.

    In this guide, we’ll explain how each type of electrical supply works, which businesses typically require three-phase power and when it may be worth considering an upgrade.

    Single-Phase vs Three-Phase

    What Is Single-Phase Power?

    Single-phase electricity is the standard electrical supply found in most UK homes and many smaller commercial premises.

    It is perfectly suitable for typical electrical demands such as:

    • Offices
    • Retail shops
    • Small cafés
    • Beauty salons
    • Small workshops
    • General lighting
    • Computers and office equipment
    • Standard heating and air conditioning

    For many businesses, a single-phase supply provides more than enough capacity for day-to-day operations.

    What Is Three-Phase Power?

    Three-phase electricity uses three alternating electrical currents instead of one, allowing power to be delivered more evenly and efficiently.

    Rather than providing short bursts of power, a three-phase supply delivers a more consistent electrical load, making it ideal for equipment that requires higher power or continuous operation.

    Businesses commonly using three-phase supplies include:

    • Manufacturing facilities
    • Engineering workshops
    • Warehouses
    • Distribution centres
    • Vehicle repair garages
    • Commercial kitchens
    • Factories
    • Agricultural buildings
    • Larger office buildings

    This is why many people search for “what businesses need three-phase power in the UK” when planning expansion.

    Single-Phase vs Three-Phase Power: The Key Differences

    Single-PhaseThree-Phase
    Standard for most homesCommon in commercial and industrial premises
    Lower power capacityHigher power capacity
    Suitable for light electrical loadsSuitable for heavy machinery and equipment
    Lower installation costsDesigned for larger electrical demands
    Ideal for smaller premisesBetter for expanding businesses

    Neither system is inherently “better”- the right choice depends entirely on your business’s electrical requirements.

    How Do You Know If Your Business Needs Three-Phase Power?

    Many businesses don’t think about their electrical supply until they encounter problems.

    Some common signs include:

    • Circuit breakers regularly tripping
    • Lights dimming when machinery starts
    • Installing commercial air conditioning
    • Purchasing large machinery
    • Adding EV charging points
    • Expanding production facilities
    • Increasing electrical demand year after year

    If any of these sound familiar, you may be searching for “does my business need three-phase electricity?”– a question that’s best answered through a professional assessment of your electrical installation.

    What Equipment Typically Requires Three-Phase Power?

    Many commercial and industrial systems perform best with a three-phase supply, including:

    • CNC machinery
    • Industrial compressors
    • Vehicle lifts
    • Commercial refrigeration
    • Large HVAC systems
    • Commercial kitchen equipment
    • Industrial pumps
    • Production machinery
    • Welding equipment
    • Large extraction systems

    Manufacturers often specify whether equipment requires a three-phase electrical supply before installation.

    Can You Upgrade from Single-Phase to Three-Phase?

    Yes. Many UK businesses successfully upgrade their electrical supply as they grow.

    The process often includes:

    • Assessing your current electrical installation
    • Calculating your electrical load requirements
    • Liaising with your Distribution Network Operator (DNO), where required
    • Installing or upgrading distribution equipment
    • Testing and certification

    Every property is different, so the exact process will depend on your existing electrical infrastructure and the capacity available in your area.

    Is Three-Phase Power More Efficient?

    One of the main advantages of three-phase power is its ability to distribute electrical loads more evenly.

    This can help:

    • Improve the performance of large motors
    • Reduce voltage fluctuations
    • Support higher electrical demand
    • Allow future expansion
    • Improve reliability for commercial operations

    While it doesn’t necessarily reduce your electricity bills on its own, it provides the infrastructure needed for businesses with greater power requirements.

    Could Renewable Energy Change Your Electrical Requirements?

    As more businesses look to reduce their energy costs and carbon footprint, many are investing in commercial solar PV systems, battery storage and workplace EV charging.

    While smaller solar installations can often be connected to a single-phase supply, larger commercial solar systems are frequently installed on three-phase electrical supplies. Three-phase power can help distribute the generated electricity more evenly across your premises and is often better suited to businesses with higher energy demands.

    If you’re planning renewable energy alongside an electrical upgrade, it’s worth considering both projects together. This can simplify the design process and help ensure your electrical infrastructure is ready for future expansion.

    Related reading: Commercial Solar Panels for Businesses → https://www.ukgei.co.uk/commercial-installation-service

    Future-Proofing Your Business

    Many businesses only upgrade their electrical supply after encountering limitations.

    However, if you’re already planning:

    • A building extension
    • New machinery
    • Additional production lines
    • Commercial EV chargers
    • Larger HVAC systems
    • Warehouse expansion

    it’s worth considering whether your existing electrical supply will continue to meet your needs over the coming years.

    Planning ahead can often reduce disruption and help avoid costly alterations later.

    Learn More About Three-Phase Power Installations

    If you’re considering a three-phase electrical installation for your business, or simply want to understand what’s involved, we’ve created a dedicated guide covering the installation process, typical applications and key considerations.

    Read our Three-Phase Power Installations guide

    Frequently Asked Questions FAQs

    What is the difference between single-phase and three-phase power?

    LS Electrical Ltd – Single-phase power uses one alternating current and is commonly found in homes and smaller commercial premises. Three-phase power uses three alternating currents, allowing it to deliver higher and more consistent power for commercial and industrial applications. This makes it ideal for businesses operating machinery, large HVAC systems or higher electrical loads.

    How do I know whether Single-Phase vs Three-Phase power is right for my business?

    LS Electrical Ltd – The right choice depends on your electrical demand. If your business is installing heavy machinery, expanding production, adding commercial EV chargers or regularly experiencing overloaded circuits, a three-phase electrical supply may be the most suitable option. A qualified commercial electrician can assess your current and future requirements.

    Can I upgrade from Single-Phase vs Three-Phase power?

    LS Electrical Ltd – Yes. Many commercial and industrial premises can be upgraded from a single-phase to a three-phase electrical supply. The process will depend on your existing installation and may require coordination with your local Distribution Network Operator (DNO) before the electrical work can begin.

    Is Single-Phase vs Three-Phase power only relevant for factories?

    LS Electrical Ltd – No. While factories commonly use three-phase power, it is also found in warehouses, engineering workshops, vehicle repair garages, commercial kitchens, schools, healthcare facilities and larger office buildings. Any business with higher electrical demands may benefit from a three-phase supply.

    Is Single-Phase vs Three-Phase power more expensive?

    LS Electrical Ltd – A three-phase installation may involve higher initial installation costs, particularly if your existing supply needs upgrading. However, for businesses with significant electrical demands, it provides the capacity and reliability needed to support equipment safely and efficiently, making it a worthwhile long-term investment.

  • Commercial Electrical Maintenance: 7 Ways to Stay on Top of Your Commercial Electrical Infrastructure

    Commercial electrical maintenance becomes increasingly improtant as your business grows, and it’s easy to focus on new equipment, expanding teams or increasing production. One thing that’s often overlooked, however, is whether your electrical infrastructure is still capable of supporting your business safely and efficiently.

    Electrical systems rarely fail overnight. More often, problems develop gradually as additional equipment is added, temporary solutions become permanent, and routine maintenance is postponed.

    While it’s tempting to focus on keeping operations moving, cutting corners where electrical safety is concerned can increase the risk of equipment failure, downtime and, more importantly, put people at risk.

    The good news is that there are some straightforward checks every business can make to stay on top of their electrical infrastructure.

    Commercial Electrical Maintenance

    1. Has Your Business Outgrown Its Electrical Installation?

    Think back to when your premises were first occupied.

    Since then, have you added:

    • Additional computers or servers?
    • Air conditioning?
    • Machinery or production equipment?
    • EV chargers?
    • Kitchen appliances?
    • Warehouse equipment?
    • New office space?

    Every addition places greater demand on your electrical system. What was perfectly adequate five years ago may now be operating much closer to its limits.

    If you’re responsible for maintaining commercial premises, our Commercial & Industrial Electrical Services page explains the types of electrical maintenance, inspections and upgrades businesses should consider as they grow.

    2. Don’t Ignore Tripping Circuits

    A circuit breaker that trips occasionally isn’t necessarily a fault.

    A breaker that trips regularly is telling you something.

    Repeated tripping may indicate overloaded circuits, faulty equipment or a developing electrical problem. Resetting it without investigating the cause isn’t solving the issue.

    Depending on your premises, businesses may require Electrical Installation Condition Reports (EICRs), emergency lighting inspections, PAT testing or planned maintenance. You can learn more about these services on our Commercial Electricians page.

    3. Avoid the “One More Extension Lead” Mentality

    Extension leads are useful for temporary situations.

    Unfortunately, many businesses end up relying on them permanently.

    Multiple extension leads, trailing cables and overloaded adaptors can all indicate that your electrical installation no longer reflects how the building is being used.

    If extension leads have become part of the furniture, it may be time to review your power distribution.

    4. Commercial Electrical Maintenance: Keep Your Electrical Testing Up to Date

    Electrical testing isn’t simply about complying with regulations.

    Routine inspections can identify deteriorating components, damaged accessories and potential faults before they become costly failures.

    Depending on your business, this may include:

    • Electrical Installation Condition Reports (EICRs)
    • Emergency lighting testing
    • PAT Testing
    • Fire alarm inspections
    • Thermal inspections where appropriate

    Keeping accurate records also demonstrates a proactive approach to health and safety.

    5. Listen to Your Staff

    Employees often notice electrical issues long before they become serious.

    Pay attention to reports of:

    • Flickering lights
    • Warm sockets
    • Buzzing switches
    • Burning smells
    • Frequent breaker trips
    • Equipment behaving unpredictably

    Small issues today can become much larger problems if left unresolved.

    6. Think Beyond Compliance

    Passing an inspection doesn’t necessarily mean your electrical installation is ideally suited to your business.

    Ask yourself:

    • Is there enough capacity for future growth?
    • Are distribution boards clearly labelled?
    • Could downtime be reduced with planned maintenance?
    • Would improved lighting increase productivity?
    • Are power supplies suitable for new equipment?

    Electrical infrastructure should support your business, not limit it.

    7. Plan Before Problems Occur

    The best time to review your electrical installation isn’t after something fails.

    Scheduling periodic reviews allows businesses to identify improvements before they affect productivity, safety or business continuity.

    Whether you operate an office, warehouse, retail premises or industrial facility, staying ahead of electrical issues is usually more cost-effective than reacting to them.

    Why Proactive Commercial Electrical Maintenance Saves Businesses Money

    Many businesses only call an electrician when something stops working. Unfortunately, by that point the disruption has often already resulted in lost productivity, unexpected repair costs or even downtime for staff and customers.

    A proactive approach to commercial electrical infrastructure helps identify small issues before they become expensive problems. Regular inspections can reveal overloaded circuits, deteriorating wiring, ageing distribution equipment or lighting systems that are consuming more energy than necessary.

    For offices, warehouses, retail premises and industrial facilities, investing in preventative electrical maintenance is often significantly more cost-effective than dealing with emergency repairs or unplanned business interruptions. LS Electrical works with businesses throughout Surrey, Hampshire and Berkshire to help keep electrical systems safe, reliable and compliant.

    A Proactive Approach Pays Off

    Commercial electrical maintenance is something many businesses rarely think about – until it causes disruption.

    By carrying out regular inspections, addressing small issues early and ensuring your electrical installation keeps pace with your business, you can reduce risk, improve reliability and help create a safer working environment for everyone.

    Electrical safety isn’t about doing the minimum required to remain compliant. It’s about protecting your people, your premises and the future of your business.

    Looking for More Commercial Electrical Advice?

    What qualifications should I look for in a commercial electrician?

    When choosing a commercial electrician, look for a contractor with recognised industry accreditations, appropriate insurance and experience working on commercial and industrial electrical systems. It’s also worth checking whether they are registered with a recognised Competent Person Scheme, such as NICEIC, which assesses contractors against recognised technical and safety standards. You can find out more about what NICEIC registration means on the official NICEIC website: https://www.niceic.com/.