UK Care Home Solar Buyer's Guide 2026

This is the buyer's guide we wish existed when we first started installing solar PV on UK care homes. It covers every decision point a care home operator faces — from initial feasibility through to commissioning, post-install reporting, and 25-year asset management. Read it end-to-end if you're early in evaluation; jump to the section you need if you're partway through.

Step 1 — Establish whether solar is worth evaluating for your home

Not every UK care home is a strong solar candidate. The 5-minute self-assessment to determine whether to invest in a desk-based feasibility:

• Roof orientation. South-facing or east/west-facing roof slope with reasonable pitch (10-50°). North-facing roof slopes generally not economically viable unless the home has substantial flat-roof or ground-mount space available.
• Roof condition. Roof with 15+ years of remaining life, no immediate replacement plan. If reroofing is imminent, the combined reroof + solar install is the right approach but timing matters.
• Roof area. Minimum 100 sqm clear roof area for a financially-viable install. Larger areas (250+ sqm) enable systems large enough to materially impact the energy bill.
• Demand profile. 24/7 operation (true for almost all care home types) drives strong self-consumption. Day-only operation patterns reduce solar self-consumption rates materially.
• Operational stability. 10+ years expected occupation of the building. For homes considering closure or sale within 7 years, PPA is the cleaner route than ownership.
• Capital position OR willingness to consider PPA. Either capex available (with corporation tax position for AIA), or operator open to PPA route.

If your home meets 4+ of these 6 criteria, the desk feasibility is almost always worth requesting. If you meet fewer, we'll honestly say so during the desk review rather than waste your time.

Step 2 — Understand what a typical install looks like for your home size

Working benchmarks for UK care home solar in 2026:

Home type	Beds	System	Installed cost	Year-1 saving	Payback
Small residential	15-25	20-30 kWp	£18-27k	£3,200-£4,800	5-6 yrs
Medium residential	30-50	30-50 kWp	£25-42k	£5,500-£8,500	4.5-5 yrs
Nursing home	40-80	45-80 kWp	£36-65k	£8-13k	4-5 yrs
Dementia care home	40-90	45-90 kWp	£36-72k	£8-15k	4-5 yrs
Hospice (inpatient)	12-24	25-60 kWp	£22-50k	£4.5-12k	4-5 yrs
Sheltered scheme	30-100 units	20-100 kWp	£16-75k	£3.5-15k	4-6 yrs
Extra-care scheme	60-100 units	50-200 kWp	£40-150k	£8-35k	5-6 yrs
Retirement village	100-250 units	200-800 kWp	£150-560k	£35-130k	5-7 yrs
Care village (CCRC)	240-300 units	400-800 kWp	£300-640k	£60-150k	5-7 yrs

Real installed examples (from published industry data): Osbourne Court (B&M Care, 52.65 kWp, April 2025) — £40k capex, £9,266 year-1 saving, 5-year payback, 24% IRR. St Luke's (B&M Care, 132.9 kWp) — 6-year payback, 20% IRR. St Michael's Hospice (60.2 kWp, March 2024) — £13,814 year-1 saving, 5-year payback.

Step 3 — Choose your funding route

Five routes are practically available for UK care home solar in 2026. The clean decision framework:

Capital purchase + Annual Investment Allowance (AIA)

For tax-paying private operators with capital available. 100% first-year tax relief on capex up to £1m. Effective 25% discount at 25% main corporation tax rate. Best for: long-term ownership, tax-paying position, capital available.

Power Purchase Agreement (PPA)

For operators without capital appetite. Third party owns and maintains; you buy electricity at fixed sub-grid tariff (typically 11p/kWh vs 27p grid). Zero capex, day-one cashflow positive, 15–25 year term with year-7+ buyout option. Best for: charity hospices, family-owned single-home operators, group operators preferring balance-sheet-light rollout.

Hire purchase

For tax-paying operators wanting ownership but not the immediate cash outlay. Finance over 5–7 years; AIA on the asset; interest portion deductible. Best for: predictable cashflow, ownership preference with finance.

Operating lease

For operators preferring fixed monthly cost. Lease over 5–7 years with purchase option at end. IFRS 16 now requires capitalisation, removing historic off-balance-sheet benefit. Best for: situations where lease accounting suits the operator.

SHDF Wave 2.2 (housing-association-owned schemes)

Only for RP-owned sheltered, extra-care, and supported-living schemes. 50% match funding for combined fabric + heat + solar. Round 2 expected Q4 2026. Best for: RP-owned schemes coordinating multi-asset decarbonisation.

For most private care home operators, the choice narrows to capex+AIA versus PPA. Use our [payback calculator](/cost/#calculator) to model both for your specific home.

Step 4 — Choose your supplier

The UK commercial solar installer market is fragmented. Around 200+ companies offer commercial solar to varying degrees; perhaps 15-20 have meaningful care home experience. Six criteria to evaluate suppliers against:

• Sector experience. Number of care home installations delivered? Specific sub-vertical experience matching your home type? References from care home operators (not just commercial generally)?
• Certification stack. MCS commercial certification (mandatory for SEG, often grants). NICEIC for electrical. RECC + TrustMark for consumer protections. ISO 9001/14001/45001. Insurance-Backed Warranty (IWA) covered.
• Sector-specific protocols. Does the installer have a CQC Well-led evidence pack? Dementia-friendly install induction? PEEP integration for battery storage? LFP-only battery specification?
• Financial substance. 3+ years of accounts. Stable cashflow. Adequate insurance (Public Liability £10m+, Professional Indemnity for technical advice). Independent of single-manufacturer supply chain.
• Honest no-policy. Will the supplier tell you if your site doesn't suit solar? Or will they quote regardless of fit? The first behaviour is the marker of a supplier you can trust over 25 years.
• Funding-route neutrality. Is the supplier tied to one funding route (e.g. PPA-only, or capex-only)? Or do they model all routes and let you choose? Independent supplier with all-route modelling is preferable.

Get 2-3 quotes from suppliers meeting all six criteria. Avoid suppliers that pressure to sign within 7 days of the first conversation — the genuine economics rarely change that fast.

Step 5 — Run the desk-based feasibility

A free desk feasibility is the standard pre-survey step. What we provide:

• Half-hourly meter data analysis (you provide 12 months of data from your supplier)
• Roof orientation and shading review (satellite imagery + roof drawings if available)
• Indicative system size and capex range
• Year-1 generation and saving estimate
• All 5 funding routes modelled with worked numbers
• Honest assessment of any factors that would prevent or complicate the install
• Indicative installation timeline

Turnaround: 5-7 working days. No commitment, no obligation. If we determine your site doesn't suit solar, we'll say so explicitly and recommend the alternative (typically: wait until existing boiler end-of-life and consider heat pump first; or alternative renewable approach).

Step 6 — Run the site survey

Once desk feasibility shows a workable install, the on-site survey follows. Typical site survey takes 90-120 minutes covering:

• Roof condition assessment (slipped tiles, membrane condition, structural integrity)
• Asbestos survey (mandatory for pre-1980 buildings under HSE CAR 2012)
• Structural loading assessment (especially for older converted buildings)
• Electrical infrastructure assessment (consumer unit, DNO supply capacity)
• Plant room location identification (for inverters and battery storage if specified)
• Access routes for scaffolding and cable runs
• Final design specification and fixed-price proposal

Output is a written report covering all factors, plus a fixed-price contract. Sign-off triggers the install programme.

Step 7 — Contract review and signing

The fixed-price contract should include:

• System specification (panels, inverters, mounting, battery if applicable)
• Installation scope, schedule, working hours
• DNO G99 application responsibility (typically supplier)
• MCS certification commitment
• Insurance-backed workmanship warranty (10 years standard)
• Panel performance warranty (25-30 years; linear performance specified)
• Inverter warranty (5-10 years; battery warranty separately)
• Liquidated damages or remediation provisions if generation underperforms
• Payment schedule tied to milestones (deposit, mobilisation, commissioning)
• Site working hours and resident-disruption protocols
• CQC Well-led evidence pack as standard handover deliverable

Get the contract reviewed by your commercial solicitor before signing. We provide template-language commentary for the most-negotiated clauses.

Step 8 — DNO G99 application and mobilisation

Parallel-tracked phases. DNO G99 application: 4-12 weeks depending on local distribution network operator and capacity. We engage the DNO at design stage and submit the application within 1-2 weeks of contract signing. While we wait for acceptance, mobilisation prep happens:

• Care home staff briefing (7-14 days before install start)
• Family notification (14-21 days before via newsletter)
• Resident notification through care staff
• Equipment procurement and panel/inverter delivery to site
• Scaffolding scheduling

Step 9 — Install (1-3 weeks on site)

Typical 50 kWp install on a 50-bed care home runs 5-15 working days on site. Daily pattern: working hours 09:00-16:30 with no overnight working. Scheduled around mealtimes, medication rounds, and visiting hours. Noisier operations time-coordinated with the home's activity schedule.

For dementia settings, additional protocols apply (dementia-friendly site induction, anti-ligature cable routing, quiet-working windows). For hospices, end-of-life clinical sensitivity protocols apply.

Step 10 — Commissioning and handover

The system goes live. Activities in the final week:

• Final electrical inspection by independent NICEIC inspector
• MCS certification registration
• SEG (Smart Export Guarantee) supplier registration
• Building insurer notification with system spec sheet
• Live generation display setup (optional)
• Care staff briefing (30-minute session)
• CQC Well-led evidence pack handover
• SECR Scope 2 reduction baseline documentation

Step 11 — Ongoing operation and reporting

Solar systems require minimal ongoing intervention. The typical operational regime:

• Monitoring platform shows live generation and historical data
• Annual visual inspection and electrical compliance check (£350-£600)
• Inverter replacement at year 12-15 (£3,000-£6,000)
• Panel performance check at year 10 and year 20
• Annual generation log extracted for CQC + SECR reporting
• Year-on-year carbon saving narrative updated for annual report

Step 12 — Decarbonisation pathway beyond solar

Solar is typically Phase 1 of a longer decarbonisation programme. The standard pathway for UK care homes:

1. Year 1: Solar PV install
2. Year 2-3: Battery storage retrofit if not initially included
3. Year 3-5: EV charging infrastructure for staff and visitors
4. Year 5-7: Heat pump DHW system (replaces gas hot water cylinder)
5. Year 7-10: Full space heating heat pump (replaces gas central heating)
6. Year 10+: Fabric upgrades and ground-mount expansion as needed

See our [social care decarbonisation pillar](/social-care-decarbonisation/) for the full 5-phase roadmap and worked economics through year 10.

Common mistakes to avoid

From 350+ commercial installations across the social care estate, the recurring mistakes operators make:

• Quoting based on rooftop area without meter data. Generation and saving estimates need real demand data, not industry estimates.
• Skipping the asbestos survey on pre-1980 buildings. Discovering asbestos mid-install adds £8-30k.
• Accepting NMC battery chemistry. LFP only for vulnerable-occupant settings.
• Forgetting to notify insurer. Required for both solar and battery; failure to notify can invalidate cover.
• Treating PPA without buyout clause as equivalent to capex. Year-7+ buyout option is the standard; insist on it.
• Locking into one funding route too early. Model all routes; choose based on your specific cashflow, tax, and ownership preferences.
• Underestimating planning timeline for listed buildings. Add 12-16 weeks for LBC; some installs run 6+ months total from quote to commissioning.
• Treating year-1 cashflow as the only metric. 25-year lifetime value typically 5-8x year-1 saving; that's where the real economics sit.

What to do next

For most UK care home operators reading this in 2026, the right immediate next step is the same: [request a free desk-based feasibility](/quote/). The 7-working-day turnaround gives you the numbers specific to your home — system size, year-1 saving, all 5 funding routes modelled — without any commitment.

From there, the standard path is site survey (week 3), contract signing (week 4), DNO application + install prep (week 5-12), commissioning (week 18-20). Total timeline: 12-20 weeks from initial enquiry to live system.