MEES EPC B (proposed 2031)
The floor to let is EPC E today; EPC B is proposed for 2031 for buildings over 1,000 m² — a PPA is the cheapest route to the uplift.
Office buildings — particularly newer 1990s+ stock with portal-frame structure — are increasingly suited to PPAs as commercial MEES tightens. Multi-let landlords now retrofit before tenant fit-out to lift EPC ratings.
A solar PPA for offices & workplaces in 2026 typically prices at 13–18 p/kWh in year one on a 50–500kWp system, versus 21–25 p/kWh grid import. The provider funds, owns and maintains the system for 15–25 years and you buy only the power it generates — no capital outlay. Typical year-1 saving: £8k–£90k.
| 2026 typical PPA profile — offices & workplaces | |
|---|---|
| System size | 50–500kWp |
| Year-1 PPA tariff | 13–18 p/kWh |
| Demand-PV match | Good — Mon-Fri 8am-6pm matches PV |
| Annual saving range | £8k–£90k |
The floor to let is EPC E today; EPC B is proposed for 2031 for buildings over 1,000 m² — a PPA is the cheapest route to the uplift.
Mon-Fri 8am-6pm matches PV beautifully; aircon load especially in summer.
Premium tenants (banks, law firms, tech) demand on-site renewables.
Landlord installs PPA; pass benefit to tenants via service charge or rent uplift.
Every sub-vertical inside this sector has slightly different PPA economics — load profile, roof type, covenant strength all vary.
Large bespoke PPAs; corporate-PPA structures common.
Multi-site sleeved PPAs increasingly attractive.
Limited roof; vertical BIPV emerging but rare.
Operator-led; on-site PPA where landlord agrees.
PSDS dominates; PPA emerging as supplement.
Aspirational ESG; first-mover PPA adoption common.
Local PPA mechanics, regional tariff context and named industrial estates for offices & workplaces in the UK's major cities.
| System size | 720 kWp |
| PPA tariff | 12.2 p/kWh (year 1) |
| Contract term | 20 years |
| Year-1 saving | £82,000 |
How a PPA compares with the other routes a offices & workplaces business can use to fund solar:
| Route | Upfront | Who owns & maintains | Best when |
|---|---|---|---|
| Solar PPA | £0 | Provider | No capital; want predictable 13–18 p/kWh power, off balance sheet |
| Cash / CapEx | Full system cost | You | Capital available; want lowest lifetime cost + 100% AIA in year one |
| Lease / asset finance | £0 down | You (after term) | Want eventual ownership but spread the cost |
| Grant-funded | Part-funded | You | You qualify for sector grant funding (often public sector) |
Full head-to-head breakdowns on compare PPA UK; tariffs on 2026 PPA rates.
Indicative 2026 tariffs for offices & workplaces range 13–18 p/kWh. The lower end applies to investment-grade off-takers on 25-year contracts with strong daytime self-consumption; the upper end applies to smaller systems or shorter terms. Our PPA calculator models your specific site.
From first call to commissioning typically 6-12 months. Indicative tariff in 2-4 weeks, site survey + heads-of-terms in 4-8 weeks, full contract in 8-12 weeks, build in 6-16 weeks. Larger systems with DNO upgrades take longer.
Typical 2026 systems for offices & workplaces range 50–500kWp. Smaller sites stack with battery storage; larger sites may split across rooftop + ground-mount or multi-site sleeved structures.
Grant capital can beat a PPA on lifetime cost, but check the window is actually open before you plan around it. The main public-sector route, the Public Sector Decarbonisation Scheme, has had no open application window since Phase 4 closed in November 2024 — and even while it was open it was heat-led, so solar qualified only alongside a fossil-fuel heating replacement in the same building. The Industrial Energy Transformation Fund, once the route for energy-intensive manufacturers, closed in July 2025 with no successor fund. For most commercial buyers a PPA wins on cashflow and admin simplicity, and it is deployable now rather than contingent on a future phase. See PPA vs grant-funded.
Most providers want investment-grade or strong-unrated covenant. For weaker covenants, parent guarantees, letters of credit, or shorter contracts can bridge. See off-taker covenant deep-dive.
A 60-second form gives us enough to return a vetted provider shortlist and indicative 13–18 p/kWh tariff within one working day.
Get an indicative PPA tariffOwner-occupied offices with steady daytime demand are natural candidates for a rooftop PPA on your own building, while tenants in multi-let blocks usually look off-site.
Solar Power Purchase Agreements for offices & workplaces — tell us about your site and we'll return an indicative p/kWh tariff for it. Reply by email within one working day.