Commercial Energy Efficiency
Packages in Cambridge
Solar PV, LED lighting, insulation, heat pumps, smart controls and battery storage — bundled into a single grant-funded project for Cambridge businesses. One survey, one contract, maximum funding.
Energy efficiency funding in Cambridge
Bundling energy efficiency measures unlocks stacking incentives — often reducing net project cost to 40–55% of gross capex.
100% first-year tax relief on all measures
Every qualifying energy efficiency measure — solar PV, LED, heat pump, BESS, smart controls, insulation, EV charging — qualifies for the Annual Investment Allowance. 100% of capex deducted from corporation tax in Year 1. On a £400,000 bundled project: £100,000 CT saving at 25% corp tax. Permanent, no cap.
Zero VAT on qualifying energy-saving measures
Solar PV, battery storage co-located with solar, insulation materials and qualifying energy-saving controls qualify for 0% VAT under energy-saving materials rules. On a £400,000 bundled project, 0% VAT versus 20% saves £80,000 in Year 0. Maximum impact when all qualifying measures are contracted together.
Interest-free loans for public sector
NHS, schools, councils and universities in Cambridge access Salix Finance interest-free loans for bundled energy efficiency packages. Repaid from energy savings. Typically 5–12 year terms, £50k–£3m+ per project. Open-ended, no competition, accepting applications continuously. PSDS Phase 4 closed but Salix BAU loans are open.
EPC upgrade as investment protection
Minimum Energy Efficiency Standards (MEES) require commercial premises to achieve EPC E minimum to be legally let. The proposed interim EPC C milestone for 2027 was dropped in the government's June 2026 interim response; the floor to let remains EPC E, with EPC B proposed for 2031 and only for buildings over 1,000 m. Energy efficiency packages that improve EPC ratings protect Cambridge commercial landlords from unlettable assets and void periods.
What's in a Cambridge energy efficiency package
Reduces grid import by 30–60% depending on roof area and demand profile. Foundation of any Cambridge commercial energy efficiency package. Qualifies for 0% VAT, the Annual Investment Allowance, and SEG export income.
Replaces T8 fluorescent and metal halide with LED — typically reduces lighting energy by 60–75%. Fast payback (3–5 years standalone). Qualifies for the Annual Investment Allowance. Reduces heat load from lighting, improving HVAC efficiency.
Replaces gas boilers with air or ground source heat pump. CoP 3.5–5.0 means each unit of electricity from solar produces 3.5–5 units of heat. Qualifies for the Annual Investment Allowance and Salix Finance for Cambridge public sector.
Captures surplus solar for use during evening demand peaks. Increases self-consumption from 55–65% to 80–90%. Enables time-of-use arbitrage. 0% VAT when co-located with solar, the Annual Investment Allowance on full capex.
Workplace chargers funded via OZEV WCS (up to £14,000). Fleet depot chargers via EVIG (up to 75%). Co-located with solar for near-zero marginal EV charging cost during daylight hours.
Building management system optimisation, occupancy-based HVAC, automated demand response. Typically reduces HVAC energy consumption by 15–25% with no structural changes. AIA-eligible.
Full energy efficiency package for a 3,000 m² Cambridge commercial building
- • 200 kWp rooftop solar: ~£140,000
- • LED lighting upgrade (full building): ~£45,000
- • 150 kW ASHP (boiler replacement): ~£90,000
- • 150 kWh battery storage: ~£72,000
- • Smart BMS + controls: ~£25,000
- • 10× 7kW EV chargers: ~£28,000
- Total gross: ~£400,000
- • 0% VAT saving (solar, BESS, insulation): ~£62,000
- • the Annual Investment Allowance at 25% CT: ~£100,000
- • OZEV WCS grants (10 sockets): ~£3,500
- Net cost after Year 1 relief: ~£234,500
- Annual energy savings: ~£65,000
- Payback on net cost: ~3.6 years
MEES and EPC compliance in Cambridge
Minimum Energy Efficiency Standards create a compliance deadline and an investment opportunity for Cambridge commercial property owners:
Energy efficiency in Cambridge sectors
Individual services in Cambridge
Energy efficiency questions from Cambridge businesses
What energy efficiency grants are available for Cambridge businesses?
What does an energy efficiency package include for Cambridge businesses?
Does Cambridge have MEES compliance requirements?
What is the typical payback for a Cambridge commercial energy efficiency package?
Free energy efficiency audit for your Cambridge site
We identify every qualifying measure, model the savings, and return a bundled grant-funded project plan within one working day.
No obligation. We don't charge for grant scoping.
Energy efficiency services near Cambridge
Funding by asset class
The allowance depends on the asset, and most pages on this topic get it the wrong way round. Solar PV is special-rate expenditure (HMRC Capital Allowances Manual CA22335), so the 100% year-one route is the Annual Investment Allowance — Full Expensing is a main-rate measure and does not reach it. Battery storage, EV charging and heat pumps are main-rate plant, so Full Expensing genuinely does apply to those.
- commercial heat pump costs and payback
Main-rate plant, so Full Expensing does apply here.
- financing commercial battery storage
Main-rate plant. Stacks with solar for self-consumption.
- commercial solar pricing by system size
Capex bands per kWp before any relief.
- solar for industrial units and warehouses
Large roofs, high daytime load — the strongest case.
- how AIA works on commercial solar capex
Solar is special-rate, so AIA is the 100% year-one route.
Find out which 2026 schemes your site actually qualifies for
- 1. A short written funding note naming every scheme your site qualifies for in 2026 — and the ones it does not.
- 2. Indicative system size and a capex band for your roof.
- 3. Year-one tax treatment per asset in £ — solar is special-rate expenditure, so the route is the Annual Investment Allowance; battery storage and heat pumps are main-rate plant, where Full Expensing does apply. Most pages get this the wrong way round.
- 4. Projected SEG export revenue at current rates.
- 5. Any red-flag eligibility or DNO issues we can see up front.
Covers solar PV, battery storage, EV charging and commercial heat pumps — separately or as one bundled project. If your project is a heat pump or a battery rather than a roof, say so in the message box and the note is written against that asset instead.
- · We do not pass your details to multiple installers.
- · We do not run a lead auction, and we never ask for your phone number.
- · No marketing lists, no unsolicited calls.
- · We are an independent funding consultancy — not an installer, and we take no installer commission.