solar panels for breweries in London

Serving London and the wider Greater London area, including Croydon, Bromley, Dartford.

Solar panels for breweries in London

London’s brewing scene has never been busier or more squeezed. From the railway-arch taprooms of the Bermondsey Beer Mile to production sites in Park Royal and Enfield, the capital carries well over 100 breweries, and every one of them is fighting the same fight: energy costs, rent, and margin, in a sector losing roughly three breweries a week nationally. Solar PV won’t win that fight on its own, but for the right London brewery on the right roof it is one of the few cost levers you actually control. This page is the honest version of how it works here.

First, the honest bit: solar only touches part of your bill

Around 70% of a brewery’s energy is thermal, the wort boil, hot liquor, steam and cleaning. That heat comes from gas or oil, and solar PV cannot offset it directly. Only the remaining ~30% is electrical, and that is what a rooftop array offsets.

The good news is that your electrical load is unusually solar-friendly. Refrigeration and glycol chilling account for roughly 35% of a brewery’s electricity and run 24/7 through fermentation, so a large share of your generation is consumed on site rather than exported. Add packaging (~25%), compressed air (15-25%), pumps (15-20%) and lighting (8-12%), and self-consumption of 75-90% is realistic for a working London brewery. That daytime coincidence between a can line, cold store and midday sun is what makes the numbers stack up. If you want to attack the thermal 70%, that is a separate conversation about PV surplus diverting to an immersion in the hot liquor tank, or an industrial heat pump (COP ~2.5-3.5), worth scoping, but not a solar-panel promise.

The London reality: who has roof rights, and who doesn’t

This is the single most important local point, and most national solar firms miss it. A huge slice of London’s craft breweries are railway-arch tenants, The Kernel, Brew By Numbers, Anspach & Hobday, Fourpure and Spartan among the Bermondsey (SE16) and Southwark cluster, plus the Hackney Wick (E9) crowd near Howling Hops. If you lease an arch from The Arch Company, the “roof” is the underside of a live railway and you almost certainly cannot mount PV on it. For those breweries the honest answer is: put solar on your packaging or warehouse unit instead, or on a production site you own, not the taproom arch.

Where London solar genuinely works is the standalone production breweries: think Sambrook’s in Wandsworth’s Ram Quarter (SW18), Meantime over on the Greenwich (SE10) side near the Peninsula, Fuller’s in Chiswick (W4), and larger sites like Beavertown and Camden’s brewery up in the Enfield/Ponders End belt (EN3). Named estates such as Park Royal (NW10), one of Europe’s largest food-and-drink manufacturing zones, Greenwich Peninsula, Stratford (E15) and the Old Kent Road industrial area are where the large, unshaded, owned rooftops actually sit.

What a London brewery array looks like

Sizing follows output, not postcode. As a rough guide: nano 6-30kW, craft micro 20-50kW, a growing craft brewery 50-200kW, and a regional producer 250-750kW. At the UK yield of ~850 kWh/kWp per year and roughly 6 m2 per kWp, a 150kWp system needs around 900 m2 of clear roof. See our cost guide for how price per kWp scales, broadly £550-1,100/kWp, with small London arrays sitting toward the top of that band because access, scaffolding and inner-city logistics cost more here, and larger production-site arrays toward the bottom. Payback typically lands at 4-7 years, faster on a regional site with heavy 24/7 chilling, slower on a nano-brewery.

Grid, planning and the London specifics

Any brewery array exceeds 16A per phase, so you’re on a G99 application to your DNO, almost always with G100 export limitation on a 3-phase 415V supply. In Greater London that DNO is UK Power Networks, specifically London Power Networks plc (DNO Area 12), which targets 45 working days to assess connections up to 1MW. Get the application in early; London’s grid is dense and constrained in places.

On planning, London is England, so commercial rooftop solar falls under Class J permitted development (flat-roof panels no more than 1 metre above the roof and set back at least 1 metre from the edge; the 1MW cap was removed in December 2023). Two London-specific catches: conservation areas and Article 4 directions are common across the boroughs, and many historic brewery buildings, old tower breweries, maltings and Victorian sites, are listed, which strips permitted-development rights and requires Listed Building Consent. Working in your favour, London Plan Policy SI 2 actively supports rooftop solar and expects PV on major new commercial development, and the Greater London Authority is targeting net zero by 2030, one of the most ambitious dates in the country.

The financial and compliance angles worth knowing

• Business rates: on-site solar and battery storage are exempt from business rates in England to 31 March 2035, and London is in England, so this applies to your site.
• Tax: solar PV is special-rate plant (HMRC CA22335). It qualifies for the Annual Investment Allowance at 100% in year one up to £1m. It does not qualify for full expensing or the new 40% first-year allowance, ignore any firm that tells you otherwise.
• VAT: commercial solar is charged at 20% VAT, reclaimable if you’re VAT-registered. The 0% rate is domestic-only and never applies to a brewery.
• Export (SEG): the Smart Export Guarantee is supplier-set, budget a range of roughly 12-16p/kWh (Octopus cut its rate to 12p on 1 March 2026). With ~25p/kWh import as the DESNZ Q2 2026 non-domestic headline (large half-hourly London sites often 15-24p), self-consumption is worth far more than export, another reason your 24/7 glycol load is the hero here.
• Climate Change Agreement (CCA): the brewing-sector CCA runs through the BBPA umbrella and gives CCL relief to 31 March 2033. Larger London breweries qualify comfortably; many small craft breweries may not meet the energy-intensity threshold, so check eligibility with the BBPA rather than assuming it. Note too that electricity you generate on your own roof sits outside CCL entirely.

A London scenario

Picture a 150kWp array on a Park Royal production brewery, roughly 900 m2 of roof, generating around 127,500 kWh a year. With glycol chilling and a can line drawing power through the working day, a brewery self-consuming ~80% offsets a meaningful chunk of its electrical load and shaves a five-figure sum off the import bill, before rates exemption and AIA are even counted.

Solar is margin defence, not green vanity. If you own or control a suitable London roof, get a brewery-specific quote and we’ll model your real load, roof and DNO position, honestly, including telling you if solar isn’t the right first move for your site.