High daytime load
Production lines run 5-7 days a week, 12-24 hours — almost perfectly coincident with PV generation. Self-consumption rates of 75-90% are typical without battery storage.
Sector: Factories & Manufacturing
Solar Power Purchase Agreements for factories & manufacturing
Factories and manufacturing plants are the largest single user of UK commercial PPAs in 2026 — high daytime electrical load, large unshaded rooftops, and balance-sheet pressure to electrify out of gas have made solar PPAs the default no-CapEx route.
| 2026 typical PPA profile — factories & manufacturing | |
|---|---|
| System size | 250kWp–2MWp |
| Year-1 PPA tariff | 10–14 p/kWh |
| Demand-PV match | Strong — daytime production matches PV profile |
| Annual saving range | £35k–£280k |
Five drivers of PPA economics in factories & manufacturing
Large unshaded roof
Modern portal-frame factories provide 3,000-15,000 m² of unshaded south-facing roof — accommodating 250kWp-2MWp without structural strengthening.
CCL avoidance
Manufacturers on CCL main rates pay 0.6p/kWh extra on grid imports. Self-consumed PPA kWh avoid CCL — an additional ~£6k/yr saving on 100k kWh self-consumption.
Supply chain ESG pressure
Tier-1 customers (auto OEMs, retailers, pharma) now require Scope 2 disclosure. A signed PPA with REGO transfer is audited evidence.
Process electrification path
PPAs unlock heat-pump retrofits, induction heating and electric process upgrades — the path off gas.
Sub-verticals within factories & manufacturing
Every sub-vertical inside this sector has slightly different PPA economics — load profile, roof type, covenant strength all vary.
Food & drink manufacturing
Refrigeration-heavy = strong daytime match. Bakeries, dairies, fresh-produce packers, breweries all suited.
Automotive assembly & components
Tier-1 Scope 2 mandates drive deals. Battery storage often stacks well.
Plastics & rubber processing
Heat-intensive — PPA combined with electrification gives biggest impact.
Chemicals & pharma
Cleanroom load drives high self-consumption. ESG disclosure typically the lead.
Aerospace & precision engineering
Clean-floor daytime load; roof access often a build constraint.
Metals, foundries, glass, cement
Heavy day load; PPA + battery often economic for peak management.
Case study
720kWp PPA for a Coventry Auto-parts Factory
| System size | 720 kWp |
| PPA tariff | 12.2 p/kWh (year 1) |
| Contract term | 20 years |
| Year-1 saving | £82,000 |
Watch-outs specific to factories & manufacturing
- G99 export limits: rural factory sites often capped at 50-100 kW; bigger systems need DNO upgrades.
- Roof structural assessment: portal frames over 20 years old may need surveying — budget £3-8k.
- Climate Change Agreements: some PPA projects affect your CCA energy use baseline — get specialist advice.
FAQs
PPA FAQs — Factories & Manufacturing
What's the typical PPA tariff for factories & manufacturing in 2026?
Indicative 2026 tariffs for factories & manufacturing range 10–14 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.
How long does the PPA setup take?
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.
What system size suits factories & manufacturing?
Typical 2026 systems for factories & manufacturing range 250kWp–2MWp. Smaller sites stack with battery storage; larger sites may split across rooftop + ground-mount or multi-site sleeved structures.
Are there grant alternatives that beat PPA?
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.
What's the off-taker covenant requirement?
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.
Get an indicative PPA tariff for your factories & manufacturing site
A 60-second form gives us enough to return a vetted provider shortlist and indicative 10–14 p/kWh tariff within one working day.
Get an indicative PPA tariff
Across the SEO Dons network
Finance routes
Grants & tax relief
Installer directory
More from the UK commercial solar advisory
commercialsolarfinance.co.uk
Compare lease, asset finance and cash routes alongside PPA on the commercial solar finance hub.
solarpanelgrantsforbusinesses.co.uk
If you'd rather own the system, check live UK grant and tax-relief options on the grants directory.
commercialsolarpanelsinstallation.co.uk
Vetted MCS-accredited installer partners on the commercial solar installation hub.