Laboratory or testing facility energy suppliers, tariffs and costs

Laboratory and testing facilities are unique in their energy requirements due to the specialised equipment and environmental controls needed to ensure accurate results. These businesses often operate around the clock, requiring reliable and consistent energy supplies. As a critical component of their operational infrastructure, energy costs can represent a significant portion of the budget. To manage these expenses effectively, it's important for laboratory managers to understand their energy usage patterns and explore competitive tariffs that meet their specific needs. With the right approach, laboratories can optimise their energy consumption and reduce their carbon footprint while maintaining the high standards necessary for their operations.

How much does energy cost for a laboratory or testing facility?

There is no published price list for laboratories and testing facilities. What a laboratory or testing facility pays depends on how much it uses in a year, when it agreed its contract and for how long, wholesale prices at that time, the standing charge, meter type, payment method and credit history. The most recent government figures, for the second quarter of 2026 (April to June, provisional), put the average price paid by UK non-domestic customers at 24.51p per kWh for electricity and 5.28p per kWh for gas, including the Climate Change Levy and standing charges and excluding VAT. A year earlier the averages were 24.03p and 5.31p. Smaller users typically pay more per unit: businesses using under 20,000 kWh of electricity a year averaged 38.36p per kWh, and those using under 278,000 kWh of gas averaged 9.31p per kWh.

Source: Department for Energy Security and Net Zero, Prices of fuels purchased by non-domestic consumers in the UK (Quarterly Energy Prices tables 3.4.1 and 3.4.2), published 29 September 2026. Q2 2026 figures are provisional; next update 17 December 2026. Prices are fully delivered averages including the Climate Change Levy and all other elements except VAT, so standing charges are already spread across the units. Averages across every UK business in a band, not quotes, and not comparable with a supplier’s unit rate.

Working out a monthly figure for your business

Take the annual kWh from your latest bill or annual statement, find the band above and multiply for a rough benchmark. A site using 15,000 kWh of electricity a year sits in the very small band: 15,000 × 38.36p is about £5,750 a year, or roughly £480 a month before VAT. A site using 60,000 kWh of gas a year: 60,000 × 9.31p is about £5,590 a year, or roughly £465 a month. The bands are statistical groupings used by the government, not supplier price breaks, so treat them as a guide to what similar-sized sites paid rather than a price you will be offered. To judge an actual quote, compare its total annual cost (unit rate × your annual kWh, plus the daily standing charge × 365) with what you pay now.

VAT and the Climate Change Levy on business energy

The prices above exclude VAT. Business energy normally carries VAT at 20% plus the Climate Change Levy (CCL). HMRC applies the 5% reduced rate, with no CCL, in three cases. First, low usage: supplies averaging no more than 33 kWh of electricity a day (1,000 kWh a month) or 145 kWh of gas a day (4,397 kWh a month) are treated as domestic use whoever the customer is. Second, fuel and power for domestic use, which HMRC defines to include homes providing care for the elderly or disabled, children’s homes, hospices and school or university residential accommodation. Third, a charity’s non-business activities. From 1 October 2026 to 31 March 2027, electricity that qualifies for the reduced rate is charged at 0% VAT instead of 5% in England, Scotland and Wales; qualifying gas stays at 5%, qualifying electricity in Northern Ireland stays at 5%, and electricity returns to 5% from 1 April 2027. HMRC has not changed which supplies qualify or the certificate process; the same rules decide whether a supply gets 0% or 20%. Where a site is mixed, 60% or more qualifying use means the whole supply gets the reduced rate; below that the supply is split between the two rates, and the customer gives the supplier a certificate declaring the qualifying percentage. Source: HMRC VAT Notice 701/19 (sections 2.8, 3.2 to 3.5, 4.2 and 5.2, updated 5 February 2025), gov.uk VAT rates and HMRC Revenue and Customs Brief 10 (2026).

Do Ofgem’s microbusiness protections apply to laboratories and testing facilities?

Ofgem treats a business as a microbusiness if it has fewer than 10 employees (or their full-time equivalent) and an annual turnover or balance sheet total of no more than £2 million, or if it uses no more than 100,000 kWh of electricity or 293,000 kWh of gas a year. A business can be a microbusiness for one fuel and not the other. Independent laboratories and testing facilities that meet either test are covered by Ofgem’s microbusiness rules, which give extra protections around contract terms and renewals (Ofgem: get energy for your business).

Do business energy rates vary by region?

Yes. Part of every unit rate covers the cost of the local electricity distribution network, and Great Britain has 14 licensed distribution areas each with its own charges, so identical contracts are priced differently in, for example, the north of Scotland and London. DESNZ does not publish non-domestic prices by region, so regional figures quoted elsewhere are supplier or broker estimates rather than official statistics.

Which energy supplier is best for laboratories and testing facilities?

There is no single answer. Suppliers price business contracts individually rather than publishing standard tariffs for laboratories and testing facilities, so the cheapest supplier for one business is often not the cheapest for the next: each prices on the consumption, meter type, contract length and credit profile in front of it. Compare the total annual cost of like-for-like contract lengths rather than the headline unit rate, and check the standing charge and what happens when the contract ends before signing.

How laboratories and testing facilities use energy

Laboratory and testing facilities have distinct energy usage patterns driven by the need for precision-controlled environments and specialised equipment. These businesses typically require continuous power to support refrigeration units, air filtration systems, and analytical instruments. Additionally, the demand for heating, ventilation, and air conditioning systems (HVAC) is high to maintain stable temperatures and humidity levels. The energy needs can fluctuate based on the type of testing conducted and the hours of operation, often leading to high baseload consumption. Understanding these patterns is essential for optimising energy efficiency and managing costs.

What affects energy bills for laboratories and testing facilities

Several factors influence the energy costs for laboratory and testing facilities, including:

• Type and number of equipment used: More sophisticated or numerous devices can increase energy consumption.
• Duration of operation: Facilities running 24/7 will incur higher energy costs.
• Energy efficiency of installed systems: Older, less efficient systems may lead to higher bills.
• Seasonal demand: Changes in temperature can affect heating and cooling needs.
• Contract terms: Fixed vs. variable rate contracts can impact costs based on market fluctuations.

How to compare tariffs

When comparing energy tariffs for your laboratory or testing facility, consider the following checklist:

• Identify your peak and off-peak energy usage times.
• Evaluate the energy efficiency of your current systems and potential upgrades.
• Look for tariffs that offer green energy options to reduce your carbon footprint.
• Consider the length of the contract and any associated terms.
• Seek advice from an energy consultant to understand the best options for your specific needs.

Gas or electricity: what matters most

In laboratory and testing facilities, electricity is often more critical than gas due to its role in powering sensitive equipment and maintaining controlled environments. While gas may be used for heating purposes, electricity is essential for operating devices such as centrifuges, spectrometers, and other analytical tools. Deciding between gas and electricity should involve evaluating your specific operational requirements and the potential for integrating renewable energy sources to support sustainability goals.

How switching works

Switching energy suppliers for your laboratory or testing facility involves several steps:

1. Review your current energy contract and identify the end date.
2. Collect data on your energy usage patterns and peak demands.
3. Research and compare available tariffs that suit your business needs.
4. Contact potential suppliers to discuss terms and negotiate rates.
5. Coordinate the switch with your current and new suppliers to ensure a seamless transition.

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