Solar PPA for ambient distribution centres

2026 indicative PPA profile

Typical system size	500kWp-2MWp
Year-1 tariff	11-13 p/kWh
Year-1 saving	£70k-£250k
Parent sector	Warehouses & Logistics

The default warehouse — and the easiest roof to build on

Ambient distribution centres are the most numerous building in UK logistics: single-storey, clear-span, portal-frame sheds storing goods that need no heating or chilling. That plain construction is a gift for solar. The roofs are broad, shallow-pitched and largely free of the plant clutter that breaks up a refrigerated site, so a 500kWp to 2MWp array goes down with minimal shading losses and standard mounting rails.

A daytime-shaped load

Unlike a 24-hour operation, an ambient DC breathes with the shift pattern — lighting, dock-door motors, forklift charging bays and a steady hum of handling equipment through the working day, then quiet overnight and often across the weekend. Generation and consumption line up well while the racking aisles are busy, with a modest surplus exported at quieter times. Priced against that profile, on-site electricity generally lands at 11-13 p/kWh and trims £70k-£250k a year off the bill.

Turning fleet charging into self-consumption

Every diesel fork-truck swapped for an electric one, and every yard shunter plugged in, drags daytime demand upward — precisely when the panels are producing. The self-consumption ratio you can prove to a funder is what drives the rate you are offered, so electrification and solar reinforce each other.

• Clear-span portal roofs suit large, low-shading arrays
• Shift-pattern demand matches midday generation
• Electrifying handling equipment lifts on-site consumption further

Sizing it to your throughput

No two DCs draw the same profile, so it pays to model yours. Put your floor area and half-hourly data through the savings calculator, weigh the different agreement shapes side by side in our comparison of PPA structures, and read how the format sits within the broader distribution and storage sector.