7 practical ways to cut business electricity bills in 2026
The measures that actually move the needle for UK SMEs — some free, some capital, all worth pricing up before your next renewal.
1. Re-tender at renewal — every time
The single highest-ROI energy action for any SME is a proper whole-of-panel re-tender at renewal, rather than accepting the incumbent's renewal offer or drifting onto out-of-contract rates. This one action reliably delivers double-digit percentage savings versus doing nothing.
2. Right-size your agreed capacity
Half-hourly and increasingly non-half-hourly sites carry capacity charges based on the kVA you have booked. Many sites are booked well above their actual peak demand. A capacity review — often free from your broker — can materially cut monthly fixed costs.
3. Retro-fit LED lighting
LED replacement typically cuts lighting energy by 60-80% and paybacks are usually under 3 years in retail, hospitality, offices and warehousing. If you still have fluorescent T5s or halogen spotlights, this is the highest-ROI capital measure in most SME buildings.
4. Get serious about HVAC scheduling
Most SME buildings run HVAC longer than they need. A building management system with proper scheduling — or even a well-configured smart thermostat network — can cut heating and cooling energy by 15-25% with no comfort compromise.
5. Shift load out of the winter peak
For HH sites the DUoS red band (typically 4-7pm winter weekdays) carries the highest network charges. If you can delay non-critical processes, batch-run overnight or add on-site storage, you cut both energy and network cost.
6. Fix VAT if you qualify
Charities, non-profits and low-usage sites (under 33 kWh/day electricity or 5 therms/day gas) qualify for the reduced 5% VAT rate. Many businesses are paying 20% by default when they qualify for less. A one-off declaration to the supplier can save meaningfully and unlock backdated refunds.
7. Consider a green tariff at renewal
REGO-backed renewable tariffs are typically within 1-3% of standard pricing. If sustainability matters to your customers or investors, this is a cheap way to move Scope 2 to zero on a market basis at the same time as re-tendering.
Ready to save?
Compare business energy prices now
Free, no-obligation quotes from our UK panel in under 60 seconds.
Get my free quote