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 28–32 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.
For public-sector sites, PSDS often gives a lower lifetime cost — but with lengthy procurement and 100% utilisation requirements. For energy-intensive industry, IETF stacks. For most commercial buyers, PPA wins on cashflow and admin simplicity. 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 tariffCompare lease, asset finance and cash routes alongside PPA on the commercial solar finance hub.
If you'd rather own the system, check live UK grant and tax-relief options on the grants directory.
Vetted MCS-accredited installer partners on the commercial solar installation hub.
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.