Solar for retail
Retail businesses face significant energy costs from refrigeration, lighting, and climate control. Combined with customer EV charging requirements and growing pressure for sustainable retail operations, this makes solar an increasingly compelling investment for retail premises of all sizes.
We work with supermarkets, retail parks, garden centres, DIY warehouses, specialist retailers, and small high-street businesses across Wales.
Retail load profiles and solar matching
Retail electrical demand is heavily concentrated during opening hours, with peak loads typically coinciding with peak solar generation. Food retail particularly benefits because of substantial continuous refrigeration loads that absorb solar generation regardless of customer traffic.
Self-consumption rates in retail are excellent, frequently exceeding ninety percent, meaning very little of the generated power needs to be exported at low Smart Export Guarantee rates. The result is solar economics that compare favourably with almost any other commercial sector.
Refrigeration and cold chain loads
For food retail, refrigeration is typically the single largest electrical load. Display cases, walk-in chillers, freezers, and back-of-house cold rooms run continuously and respond directly to ambient temperatures, meaning hot sunny days produce both peak solar generation and peak refrigeration demand. This creates an unusually strong match between supply and consumption.
We design refrigeration-heavy retail systems to capture this synergy fully, often combining solar with battery storage that smooths overnight loads and provides backup for chiller operation during outages.
- Strong solar self-consumption from refrigeration loads
- Excellent supply-demand match on hot summer days
- Battery storage for overnight smoothing
- Cold chain protection during grid outages
- Customer EV charging supported by daytime solar
Customer EV charging as a retail draw
Customer EV charging has rapidly evolved from a sustainability nice-to-have into a genuine retail driver. Drivers actively select destinations based on charging availability, and a well-positioned rapid charger can drive measurable footfall to supermarkets, retail parks and destination retail. Pairing chargers with solar dramatically improves the economics, particularly for free or low-margin charging models.
Retail park landlords and shared solar
For retail park landlords, solar can be deployed across multiple tenant units with energy shared through private wire arrangements or sub-metering. This model has worked particularly well in Wales where many retail parks have multiple units with complementary load profiles, allowing landlords to size arrays to combined demand rather than the smallest tenant.
Frequently asked questions
Will solar work for small retail premises?
Yes, although the economics scale with system size. Smaller systems are still worthwhile, particularly for refrigeration-heavy operations like convenience stores and butchers.
Can we power customer EV chargers from solar?
Yes. This combination is one of the most effective deployments in retail because the EV chargers absorb daytime generation that might otherwise need to be exported.
How visible are the panels from customer car parks?
On flat retail roofs panels are not generally visible from ground level. We can model visibility for specific sites where customer-facing appearance matters.
What about retail parks with multiple tenants?
We design multi-tenant arrangements regularly, with the legal and metering frameworks needed to share solar generation equitably between landlord and tenants.
Supermarket solar and the cold chain
Supermarkets are one of the strongest retail sectors for solar because of the continuous, weather-correlated refrigeration loads they carry. A typical mid-sized supermarket of 25,000 square feet supports a 200kW to 350kW system depending on roof orientation and structural capacity, with annual generation matching roughly forty to sixty percent of the store's total consumption.
Adding battery storage to a supermarket installation typically extends the solar contribution further by smoothing overnight refrigeration loads from earlier daytime generation. Several of our supermarket customers have deployed battery storage primarily for cold chain protection during grid outages, with the renewable energy time-shifting benefits a secondary but significant gain in the project economics.
Working in trading retail environments
Retail premises operate continuously through trading hours and cannot easily close for installation work. Most installation activity takes place on the roof where it has no impact on the shop floor, with internal electrical work planned for early mornings, late evenings, or quiet trading periods. We work closely with store managers to plan any work that could affect customer experience, and we coordinate with chain operations centres where required to align with broader operational schedules.
Multi-site retail rollouts
For retail chains operating multiple stores, we offer portfolio-level rollout programmes that apply consistent design standards across the estate while optimising for each individual store's characteristics. Shared procurement, standardised documentation, and consistent monitoring across sites simplify both the rollout phase and ongoing portfolio management. We have completed multi-site programmes for several Welsh retail and hospitality operators, delivering consistent quality and predictable economics across the portfolio.
Energy display in customer-facing locations
Visible live generation displays in store entrances and checkout queues effectively communicate retailer sustainability commitments to customers. We design these displays to be approachable rather than technical, with clear visual representation of current generation, daily totals, and cumulative carbon avoided. Several of our retail customers report measurable customer engagement with these displays and use them as the centrepiece of in-store sustainability communication alongside product carbon labelling and packaging initiatives.