Anglesey
Solar panels in Holyhead, sized to your roof.
Twelve panels (6.36 kWp) here make about 6,830 kWh a year for £6,360 installed, designed around your roof on a free 30-minute video call.
Get my free quote
Three details. We call or text within one working day to book your free 30-minute design call, on video or by phone if you prefer.
or call 07782 219224
- Free 30-minute video design call
- Priced before anyone visits
- Installed by our MCS-certified, fully insured teams
Holyhead's solar year
Holyhead's best month is May, at 144.2 kWh per kWp; December manages 26.8. Over the year that comes to 1,074 kWh per kWp, 7% above our Anglesey county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 33.8 |
| February | 56.3 |
| March | 93.7 |
| April | 125 |
| May | 144 |
| June | 141 |
| July | 135 |
| August | 122 |
| September | 95 |
| October | 62.8 |
| November | 39 |
| December | 26.8 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 1,074 kWh per kWp in Holyhead against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Holyhead 16% above it.
How Holyhead compares
Small towns rarely get published solar figures, so here are the numbers for Holyhead. It is the only Anglesey town we track so far, with county rankings to follow as its neighbours land, a town of 12,027 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,074 kWh per kWp a year, 2.94 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £954 of year one benefit, £247 of it from your own generation and £707 from export at 12p.
Treat these as calibration rather than a quote. The calculator below runs the same model, opened on Holyhead's own yield, and prices a 12 panel system at £6,360 installed before any battery. Your free design call reworks every number for your actual roof, its shading and your usage.
Isle of Anglesey is the planning authority covering Holyhead, which the House of Commons Library classes as a small town.
The charger is in the installed price but left out of payback: charging savings depend on your mileage and tariff, which the design call models properly.
Your real roof and usage, worked through on a free 30-minute video call. Use the full form or leave three details below.
Price this for your roof
Three details. We call or text within one working day to book your free 30-minute design call, on video or by phone if you prefer.
Modelled for Holyhead at 53.30661, -4.62808 on PVGIS data, with imports valued at 26.32p/kWh and solar at £1,000 per kWp installed. Sources and assumptions: help page.
Who runs the grid in Holyhead
Holyhead sits in SP Energy Networks' North Wales, Merseyside and Cheshire licence area, so SP Energy Networks is the network operator (DNO) any solar panels or battery here are registered with.
Below 3.68kW per phase of inverter and battery output, the G98 route applies: the installation is notified to SP Energy Networks within 28 days of commissioning, with no prior approval.
A bigger inverter or battery output needs a G99 application in advance. Ofgem's guaranteed standard for a low voltage generation connection quotation is 45 working days, with £80 paid for each working day late, and it binds SP Energy Networks as it does every network operator.
Sources: NESO DNO licence areas (3 May 2024); Ofgem, Distributed Generation Standards Direction guidance, checked 27 September 2026. G98 vs G99, explained.
Heat pumps and EV charging in Holyhead
A heat pump in Holyhead
A heat pump does most of its work from November to February. Over those four months, 12 panels in Holyhead make about 990 kWh, against 3,440 kWh from May to August, so winter heating runs mostly on grid electricity and the tariff matters more than the roof.
The Boiler Upgrade Scheme, open in England and Wales, takes £7,500 off an air source or ground source heat pump, or £2,500 off an air-to-air unit. Homes on oil or LPG with no mains gas get £1,500 more until March 2027 (gov.uk, checked 28 September 2026).
Charging an EV in Holyhead
A 12-panel roof in Holyhead makes about 920 kWh in May. A typical home uses around 70 kWh of that in daylight (the calculator's typical-use settings), which leaves most of the month's output for an EV or for export.
The calculator above includes a 7.4kW smart charger from £1,100 installed. Renters and flat owners with off-street parking can claim 75% of a chargepoint's cost, up to £500 per socket, until 31 March 2027 (gov.uk, checked 28 September 2026).
What the named kit costs, installed
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Holyhead
Faults, servicing and ageing inverters follow the same economics in Holyhead as anywhere else, and the guides below price them plainly.
Solar in Holyhead: your questions answered
What does a solar panel system produce in Holyhead?
Each kWp of panels in Holyhead makes 1,074 kWh a year on PVGIS figures, so a typical 12-panel system produces around 6,830 kWh, from about 170 kWh in December up to 920 kWh in May.
How much are solar panels in Holyhead?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Holyhead before a battery. What Holyhead changes is the return, about 6,830 kWh a year from that system, and your design call prices your actual roof.
Would a system in Holyhead need approval from the network operator?
Holyhead is on SP Energy Networks' network (North Wales, Merseyside and Cheshire licence area). Systems up to 3.68kW per phase of inverter output follow G98: SP Energy Networks is notified within 28 days of commissioning, with no approval needed first. Anything larger needs a G99 application before installation. Ofgem's guaranteed standard for a low voltage generation connection quotation is 45 working days, with £80 paid for each working day late, and it binds SP Energy Networks as it does every network operator. Our G98 vs G99 guide explains both routes.
How much can I earn from exporting solar in Holyhead?
With typical use and no battery, a 12-panel system in Holyhead exports about 5,894 kWh a year. At 12p per kWh that is roughly £707; a supplier paying more, or a battery that keeps more for the evening, changes the figure. See the export rates table.
Is solar worth it in Holyhead in winter?
It works, but the year is lopsided. 71% of a Holyhead roof's output lands between April and September; the four months from November to February give about 990 kWh on a 12-panel system. Payback is worked out on the whole year, not the winter.
How Holyhead compares with its neighbours
Same satellite dataset, same assumptions, so the differences are real geography rather than modelling noise.
| Town | kWh per kWp a year | vs Holyhead |
|---|---|---|
| Holyhead | 1,074 | this town |
| Caernarfon | 891 | −183 kWh |
| Bangor | 808 | −266 kWh |
| Llandudno | 966 | −108 kWh |
| Conwy | 933 | −141 kWh |
| Colwyn Bay | 933 | −141 kWh |
| Abergele | 950 | −124 kWh |
Each row is a PVGIS v5.2 run at that town's centre with the same settings. Treat gaps of a few kWh as noise and gaps over about 30 kWh per kWp as real differences in sunshine.
Also for Holyhead: Solar panels in Holyhead from OVO Solar & Battery
See a number before you speak to anyone
Answer a few questions about your roof and usage and see an instant solar and battery estimate. No email needed to see the result.
Further reading for Holyhead
Sourced, dated and written by us. The same ground we cover on your free call.
How do solar panels work? The full explanation, from photon to plug socket
Light into silicon, DC into AC, AC into your bill. The whole chain, explained.
Read the guide →Inside a home battery: capacity, power and losses
Usable capacity, kW output, round trip losses and chemistry, in plain terms.
Read the guide →What an EV charger installation actually involves
Main fuse, DNO notification, load balancing and the paperwork. What really happens.
Read the guide →Sizing a heat pump: what a proper survey covers
Sized by calculation, not by rule of thumb. What the survey covers, and what guessing costs.
Read the guide →What the Smart Export Guarantee actually is
The scheme obliges suppliers to pay above zero, and leaves the rate to them.
Read the guide →G98 or G99: which one applies, what the application involves, and how long it takes
The G98 line sits at 3.68kW per phase. Above it, your network operator has to say yes first.
Read the guide →Get my free quote
Takes about two minutes. We call or text within one working day to book your free 30-minute video design call at a time that suits you. We design it around your roof and your numbers, and our MCS-certified, fully insured installation teams install it.