Haddington solar guide: yields, costs and the Home Energy Scotland route
Solar in Haddington is shaped as much by the local housing stock and council attitude as by sunshine hours. With suitability rated 4/5 and access to Home Energy Scotland interest-free loans of up to £12,000, the right install on the right roof in East Lothian produces a dependable, multi-decade return.
Is solar worth it in Haddington?
For most Haddington homeowners with a south, southeast or southwest-facing roof of at least 18 m², solar in 2026 produces a strong, predictable return. With local sunshine averaging 1440 hours per year and a yield of around 850 kWh per kWp, a standard 4kWp install saves about £680 a year and pays back in roughly 10.1 years.
The economics tighten meaningfully for households with daytime occupancy, EV charging or a heat pump — these homes routinely consume 55–70% of generated electricity directly rather than exporting it at SEG rates, compressing payback below 8.1 years.
Where solar makes less sense in Haddington: heavily shaded north-facing roofs, properties with major chimney or tree obstructions, short-tenure private rented sector flats, and households without the daytime base load to absorb summer generation (which makes a battery the deciding factor).
| Sunshine hours/year | 1440 |
| Yield per kWp | 850 kWh |
| Typical 4kWp output | 3,400 kWh/yr |
| Estimated 25-yr savings | £17,000 |
| Solar suitability | 4/5 |
Housing stock in Haddington
Haddington's historic core (Court Street, Sidegate) is a conservation area dense with listed buildings — almost any street-facing install needs LBC. Substantial detached homes in Letham Mains and Amisfield Park easily accommodate 5–6kWp arrays with battery.
Predominant roof type: Georgian and Victorian sandstone with slate, modern detached on the town edge.
Sunshine, irradiance and what to expect from Haddington roofs
Sheltered Tyne valley site benefits from East Lothian's exceptional sunshine record while avoiding coastal salt. Yields routinely outperform published averages by 2–4%.
A typical south-facing 4kWp installation in Haddington produces around 3,400 kWh/year — enough to cover roughly 45–55% of a typical Scottish household's annual electricity demand (Scottish average ~3,400 kWh). With a battery, self-consumption typically rises from 30% to 65–75%.
Haddington solar prices and system sizing
| System size | Indicative cost (2026) | Annual saving | Payback |
|---|---|---|---|
| 3kWp (~7 panels) | £4,368–£6,396 | £510 | 10.4 yrs |
| 4kWp (~9 panels) | £5,600–£8,200 | £680 | 10.1 yrs |
| 6kWp (~14 panels) | £7,560–£11,070 | £952 | 9.7 yrs |
| + 5kWh battery | + £2,500–£3,800 | + £180–£320 | — |
See our full Scottish solar cost guide for line-item breakdowns and what to expect on the quote.
Local installer market
Edinburgh-based installers serve EH41 directly; expect 4–6 week lead times outside summer peak.
East Lothian planning rules for solar
East Lothian Council — Haddington has a particularly active Town Centre Strategy supporting low-carbon retrofit.
Use our grants & funding guide to check Home Energy Scotland loan and ECO4 eligibility before requesting quotes.
Get a Solar Quote in Haddington
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Calculate your Haddington solar savings
Our solar savings calculator uses Haddington-specific irradiance assumptions (850 kWh/kWp/year) to estimate generation, self-consumption and payback for your address.
Haddington solar FAQs
01.How much do solar panels cost in Haddington in 2026?
A typical 4kWp residential install in Haddington costs between £5,600 and £8,200 in 2026, including scaffolding, inverter, MCS certificate and DNO notification. Adding a 5kWh battery typically adds £2,500–£3,800. All costs are eligible for the Home Energy Scotland interest-free loan up to £12,000.
02.Are solar panels worth installing in Haddington?
For most Haddington homeowners with an unshaded south, southeast or southwest-facing roof, solar pays back within 10.1 years and produces ~£680 of annual savings at current Scottish energy prices. Local suitability rating: 4/5.
03.What grants are available for solar in Haddington?
Eligible Haddington households can access Home Energy Scotland interest-free loans (up to £6,000 PV + £6,000 storage), ECO4 fully-funded installs for means-tested households, rural and qualifying-income cashback grants, and Smart Export Guarantee export payments. East Lothian Council — Haddington has a particularly active Town Centre Strategy supporting low-carbon retrofit.
04.How much electricity will I generate in Haddington?
Haddington receives around 1440 sunshine hours per year, producing ~850 kWh per kWp installed. A 4kWp system therefore generates approximately 3,400 kWh/year — enough to cover roughly 45–55% of a typical Scottish household's annual electricity demand.
05.Do I need planning permission for solar panels in Haddington?
Most installs fall under permitted development. Listed buildings, properties in conservation areas, tenement common roofs and flats typically require additional consent. East Lothian Council — Haddington has a particularly active Town Centre Strategy supporting low-carbon retrofit.