Solar by Care Setting 2026: Nursing vs Residential

Not all care settings are equal when it comes to solar. A 24/7 nursing home with constant clinical loads behaves very differently on paper to a sheltered scheme where the lights go off at night — and that difference is precisely what decides your payback. This guide breaks down solar by care setting, so you can see how nursing, residential and dementia homes each stack up on demand profile, typical system size, self-consumption and return.

Most national installers treat “care home” as one undifferentiated category. It isn’t. The single biggest driver of solar economics is self-consumption — the share of generated electricity you use on site rather than exporting — and that figure swings hard depending on what kind of care you provide and how round-the-clock your demand really is.

Why self-consumption decides everything

Solar pays back through two streams, and they are worth wildly different amounts:

• Self-consumed solar offsets the grid electricity you’d otherwise buy at 24–28p/kWh.
• Exported solar earns the Smart Export Guarantee (SEG) at just 4–6p/kWh.

Self-consumed solar is therefore worth roughly 5× more than exported solar. Every kilowatt-hour your building uses the instant it’s generated is a kilowatt-hour you didn’t buy at full retail price. That’s why a building’s demand shape — not just its total consumption — governs the return.

Care homes sit in a sweet spot. Across building types, typical self-consumption runs: office 20–30%, retail 30–45%, care home 40–60%, and 24/7 manufacturing 55–70%. Because care homes run continuously — heating, hot water, laundry, kitchens, lifts, medical equipment and lighting around the clock — they self-consume far more of their generation than a 9-to-5 office. That is the structural reason care home solar ROI beats most commercial sectors.

The three settings compared

Within the care sector, the demand profile shifts again by setting. Nursing and dementia homes carry the heaviest 24/7 clinical and safety load (continuous monitoring, more equipment, higher staffing), so they self-consume at the top of the band. Residential care sits mid-range. Sheltered and retirement schemes have a lower daytime base load, which pulls self-consumption — and therefore payback — toward the weaker end.

Care setting	Demand profile	Typical system size	Self-consumption	Typical payback
Nursing / dementia home	Highest 24/7 clinical load, best self-consumption	~50 kWp (20 kWp minimum viable)	Top of 40–60% band (~55–60%)	4–6 yrs
Residential care home	Strong daytime + evening load, continuous occupancy	~50 kWp typical	Mid 40–60% band (~45–55%)	5–8 yrs
Sheltered / retirement scheme	Lower daytime base load, communal areas only	20–50 kWp depending on communal load	Lower end (~40–45%)	6–8 yrs+

Payback ranges assume flat electricity prices. With rising prices, knock roughly a year off each figure.

Solar panels for nursing homes

Nursing homes have the strongest case in the sector. Continuous clinical activity means high overnight and weekend base load, so a large share of midday generation is consumed on site rather than exported. A 132 kWp nursing-home-group install is a sector-typical benchmark, delivering around £21,000/yr in savings with a ~6-year payback. Read the full demand-profile breakdown on our solar panels for nursing homes page.

Solar panels for residential care homes

Residential care homes still benefit strongly — they’re occupied round the clock with steady heating, hot water and catering loads — but typically with a slightly lower clinical equipment base than nursing settings. Self-consumption lands mid-band, with payback usually in the 5–8 year range. The worked numbers and roof-sizing guidance are on our solar panels for residential care homes page.

Solar panels for dementia care homes

Dementia care homes combine high staffing, secure 24/7 environments and continuous monitoring, giving them a demand profile close to nursing homes — and among the best self-consumption in the sector. That makes them strong candidates for a larger system sized to base load. See our solar panels for dementia care homes page for setting-specific detail.

What it looks like in numbers

To make the bands concrete, here’s a worked example for a 50-bed care home in southern England:

• Annual electricity spend: ~£48,000/yr
• System: 50 kWp (needs ~250–300 m² of south-facing roof)
• Generation: ~45,000 kWh/yr
• At 55% self-consumption: 24,750 kWh × 25p = £6,188 saved
• Export: 20,250 kWh × 5p = £1,013
• Year-1 benefit ≈ £7,200, payback typically 5–8 years at flat prices (4–6 with rising prices)

A 50 kWp system also avoids around 11 tonnes of CO2 per year — useful evidence for sustainability reporting. For full cost and sizing figures, see our care home solar cost guide, and model your own building with our care home solar payback calculator.

Energy spend scales sharply with size and acuity. UK care home bands run from £14,400–£27,600/yr for small homes, up to £71,400/yr for medium settings, and £156,000+/yr for large nursing and dementia homes — which is exactly why the heaviest-demand settings see the fastest returns.

Funding routes by setting

Funding is where most installers go quiet. Depending on your setting and ownership, several routes may apply:

• SHDF Wave 2.2 — a £1.29bn fund administered by Salix Finance for DESNZ, for registered providers of social housing only (sheltered, extra-care and supported-living schemes they own). Up to 50% match funding; Round 2 expected Q4 2026. This is the standout route for RP-owned sheltered and retirement settings.
• Capital allowances — solar PV sits in the special-rate pool (6% WDA). It is not eligible for 100% full expensing, but qualifies for the Annual Investment Allowance (£1m) or the 50% First-Year Allowance on special-rate spend.
• 0% VAT on solar and battery until 31 March 2027.
• Business rates — solar installations are exempt from business-rates valuation increases in England until 2035.
• SEG — export income on surplus generation.
• Finance — a PPA gives zero-capex, below-grid pricing and day-one positive cashflow; hire purchase, operating lease and outright purchase are also options.

A well-executed install also supports the CQC “Well-led” Key Line of Enquiry through evidence of sustainability and financial stewardship. It won’t directly raise a rating — but it’s legitimate documentation of good governance.

When solar is not worth it

Honest answer: solar isn’t right for every care home. Watch for:

• Heavily shaded or north-facing roofs, or roofs too small for a viable system (below ~20 kWp).
• A roof due for replacement within a few years — re-roof first, then install.
• Low daytime base load at small sheltered schemes, which pushes self-consumption below the band and stretches payback.
• Short-term tenure of the building, where you won’t be there long enough to see the return.

If your setting falls into one of these, the right move is to fix the roof or right-size the system — not to oversize and export cheaply.

Get a setting-specific assessment

The honest takeaway: nursing and dementia homes generally see the fastest returns because their 24/7 clinical demand self-consumes the most solar, while sheltered and retirement schemes need careful sizing to make the numbers work. The only way to know your exact payback is a building-specific assessment of your roof, load profile and funding eligibility.

Tell us your setting, bed count and roof and we’ll model your self-consumption, system size and payback — and flag any grant or finance route you qualify for. Request your free care home solar assessment and we’ll come back with the numbers for your specific setting.