Energy Costs Doubling: How UK SMBs Cut Bills Without Cutting Corners

When the Energy Bill Doubled Overnight#

In October 2022, a family-run restaurant in Sheffield received its first renewal energy bill under the new tariff environment. Their annual electricity and gas costs had been approximately £18,000. The new contract, the cheapest their broker could find, was £41,000 per year — an increase of 128% year on year. With a net profit margin of 8% on annual turnover of £620,000, the restaurant was generating £49,600 in profit. The energy increase alone wiped out nearly half of it. The owners had two choices: raise prices significantly (risking customer loss in a competitive local market) or cut consumption dramatically. They chose both, combined with a systematic energy management programme that ultimately reduced their energy costs by 35% from the peak — still higher than pre-crisis levels, but manageable. The steps they took — and the results they achieved — are replicable for any UK hospitality or retail SMB. Energy is not a fixed cost. It is a variable that can be actively managed through behaviour, equipment, and contract strategy. AskBiz helps track the financial impact of energy costs as part of your overall margin picture — so you see exactly what percentage of your revenue is going to utilities and can set reduction targets against a clear baseline.

Immediate Wins: Cutting 15% Within 30 Days#

Energy efficiency improvements do not require capital investment to get started. Behavioural and operational changes alone typically achieve 10–20% energy reductions within 30 days. For hospitality: turning off equipment when not in use is the single highest-impact change most restaurants can make. Commercial ovens left on through a mid-afternoon lull, refrigeration doors left open during deliveries, kitchen extraction fans running at full power when only one station is active — these habits add up to thousands of pounds per year. A 30-day energy audit — where a staff member monitors equipment usage patterns and identifies idle-running equipment — typically finds 10–15% of energy consumption attributable to unnecessary operation. For retail: lighting is often the largest controllable energy cost. Switching to LED lighting across a 2,000 sq ft retail space reduces lighting energy consumption by 50–70%. At commercial rates, this saves a typical small retailer £1,500–£3,000 per year with a payback period of 12–18 months on the upfront LED cost. For all SMBs: review your energy contract. Many businesses roll onto out-of-contract "deemed rates" — the most expensive tariff available — when they fail to renew on time. Even in a high-price environment, an actively negotiated contract is 15–25% cheaper than deemed rates. Using an independent energy broker (free to use — they earn commission from suppliers) takes 30 minutes and can generate meaningful savings within one contract cycle.

Equipment Investment: The 2-Year Payback Zone#

Beyond behavioural changes, capital investment in energy-efficient equipment can generate substantial long-term savings. The key is focusing on equipment with payback periods under 24 months — generating financial return quickly enough to justify the upfront cost even in uncertain trading conditions. Commercial refrigeration is typically the highest-priority investment for food and retail businesses. Old refrigeration units, particularly those over 10 years old, consume 40–60% more energy than current best-in-class equivalents. Replacing a single large commercial refrigeration unit can save £800–£1,500 per year in energy costs. At a replacement cost of £2,000–£3,500, payback is typically 18–24 months. VSD (variable speed drive) retrofits on commercial kitchen extraction fans can reduce fan energy consumption by 50–70% by matching fan speed to actual extraction demand. Cost: £400–£800 per fan. Annual saving per fan: £300–£600. Payback: 12–18 months. Small-scale solar PV is increasingly viable for SMBs with owned or long-leased premises. A 10kWp system on a commercial roof generates approximately 8,500 kWh per year in the UK midlands. At commercial electricity rates of £0.30/kWh, that is £2,550 per year in savings. System cost: £8,000–£12,000. Payback: 3–5 years, with a 20-year system life. Government grants and financing options available through local enterprise partnerships reduce the upfront cost further. Track the financial impact of each energy investment through AskBiz's cost reporting — comparing utility costs month-on-month before and after each improvement to validate actual versus projected savings.

Energy Contracts: Fix, Float, or Half-and-Half?#

Energy contract strategy is one of the most impactful financial decisions an SMB makes, and most businesses make it without specialist advice. Fixed-rate contracts lock your unit price for a specified period — typically 1, 2, or 3 years. They provide price certainty but mean you cannot benefit if wholesale energy prices fall below your fixed rate. In the 2022 price spike, businesses on long-term fixed contracts from 2019-2020 had a significant competitive advantage. Those on fixed contracts from late 2021 (at the peak) were locked into high prices as markets corrected in 2023. Variable-rate contracts pass through wholesale price movements, offering potential savings when prices fall but exposure when they rise. For most SMBs, the uncertainty of variable rates creates budgeting difficulties that outweigh the potential savings — fixed-rate contracts are generally more appropriate for businesses where energy represents more than 5% of turnover. Half-and-half — fixing 50% of your energy volume on a long-term contract and leaving 50% on a shorter-term or variable rate — balances certainty and flexibility. This approach, used by sophisticated energy buyers, reduces both the risk of being locked in at a peak price and the risk of being fully exposed to a price spike. Use an independent energy broker to navigate these options. Brokers with access to the non-domestic energy market can access rates unavailable through direct negotiation with suppliers, and the best will advise on contract structure as well as price. Compare at least three broker quotes before committing.

Government Support and Grants for SMB Energy Efficiency#

The UK government and devolved administrations have provided several support mechanisms for SMB energy efficiency that are worth actively pursuing. The UK Shared Prosperity Fund and its regional equivalents (such as the Welsh Government's Warm Wales scheme and Scotland's SME Energy Loan Scheme) provide grants and low-interest loans for energy efficiency improvements. Eligibility and amounts vary by region and scheme year — check with your Local Enterprise Partnership (LEP) or Business Gateway for current availability. Energy-efficient equipment purchases are eligible for Enhanced Capital Allowances (ECA) under HMRC's Energy Technology List — allowing you to deduct 100% of the cost in the year of purchase rather than over a multi-year depreciation schedule. For a £10,000 refrigeration upgrade, this could generate a £1,900 tax saving in the year of purchase (at 19% corporation tax rate) versus approximately £380 per year over a 5-year straight-line depreciation schedule. Some energy suppliers offer Smart Meter Business Plans that provide real-time energy consumption data by time of day and area of premises. Businesses that use this data to shift non-essential consumption to off-peak tariff periods — running dishwashers, charging equipment, and running heavy loads overnight or at weekend — can reduce effective energy costs by 10–20% without reducing total consumption. For the largest energy users, the Carbon Trust offers free energy audits to qualifying SMBs, identifying efficiency opportunities and providing a structured improvement plan. An audit typically identifies 15–25% efficiency gains. Apply through the Carbon Trust website.

• The 2021-2023 energy crisis taught UK SMBs that energy is not a fixed cost — it is a manageable one.
• The businesses that came through it best made systematic efficiency improvements, locked in favourable contracts, and used real-time data to identify and eliminate waste.