Hertfordshire
Solar panels in Waltham Cross, priced before anyone visits.
About 6,440 kWh a year from 12 panels in Waltham Cross, £6,360 installed, with your system designed on a free 30-minute video call.
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Sunlight in Waltham Cross, in numbers
PVGIS puts Waltham Cross at 1,012 kWh per kWp a year, 1% below our Hertfordshire county estimate. 68% of it arrives between April and September, peaking in July.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 39.1 |
| February | 53.2 |
| March | 87 |
| April | 113 |
| May | 120 |
| June | 122 |
| July | 124 |
| August | 109 |
| September | 96.2 |
| October | 65.5 |
| November | 46.1 |
| December | 36.8 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
Our GB average is 925 kWh per kWp a year, the mean of the 85 county PVGIS estimates we publish; at 1,012, Waltham Cross is 9% above it.
How Waltham Cross compares
Small towns rarely get published solar figures, so here are the numbers for Waltham Cross. It is one of 27 Hertfordshire towns we track, and it ranks 24th of 27 for solar yield, a town of 12,412 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,012 kWh per kWp a year, 2.77 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £907 of year one benefit, £247 of it from your own generation and £660 from export at 12p.
Every figure here assumes a clear, south-facing roof at 35 degrees. Yours will differ, which is what the free design call is for; until then, the calculator below tests panels, batteries and export rates on Waltham Cross' own yield.
Any planning application in Waltham Cross sits with Broxbourne, and its official House of Commons Library settlement class is 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.
The figures use PVGIS for the centre of Waltham Cross (51.68658, -0.02955), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
UK Power Networks and your Waltham Cross connection
The distribution network operator (DNO) for Waltham Cross is UK Power Networks, which runs the East England licence area.
For a typical home the paperwork is light: a system of up to 3.68kW per phase goes through G98, which means UK Power Networks is notified within 28 days of switch-on rather than asked beforehand.
Larger systems go through G99 instead, applied for before installation. On timing: 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 UK Power 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.
Beyond the panels: heating and car charging in Waltham Cross
A heat pump in Waltham Cross
In December, the darkest month here, 12 panels in Waltham Cross make about 230 kWh. That is when a heat pump runs hardest, so its running cost in Waltham Cross comes down to the tariff and the flow temperature rather than the roof.
Grant support in England comes from the Boiler Upgrade Scheme: £7,500 for an air source or ground source heat pump, £2,500 for air-to-air, and an extra £1,500 until March 2027 where the home is heated by oil or LPG off the gas grid (gov.uk, checked 28 September 2026).
Charging an EV in Waltham Cross
Summer is where a car earns its place. In July, 12 panels in Waltham Cross make about 790 kWh, against roughly 70 kWh a typical home uses in daylight that month on our calculator's typical-use settings, so there is surplus a smart charger can put into the car instead of exporting it.
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).
Installed prices, the same in every town
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Waltham Cross
The same sourced benchmarks apply in Waltham Cross as everywhere we cover: honest repair pricing and what a service should include.
Common questions about solar in Waltham Cross
How much electricity do solar panels make in Waltham Cross?
About 6,440 kWh a year from 12 panels (6.36 kWp), on PVGIS satellite data for Waltham Cross: 1,012 kWh per kWp, or 2.77 peak sun hours a day on average. July is the strongest month, at about 790 kWh.
What does a typical solar system cost in Waltham Cross?
Solar is priced at £1,000 per kWp installed wherever you live, so a 12-panel, 6.36 kWp system costs £6,360 in Waltham Cross, exactly as it would anywhere else, before any battery. Location changes what the system makes, not what it costs: here that is about 6,440 kWh a year. The final figure comes from your roof on the design call.
Which DNO covers Waltham Cross, and what does it need from me?
UK Power Networks covers Waltham Cross. A home system of up to 3.68kW per phase is notified to UK Power Networks within 28 days of commissioning under G98, and nothing waits on approval. Larger outputs need a G99 application before work starts. 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 UK Power Networks as it does every network operator.
What happens to the solar I do not use in Waltham Cross?
Around £660 a year at 12p per kWh, for the roughly 5,500 kWh a 12-panel system in Waltham Cross exports with typical use. Rates vary by supplier and some need their own tariff; the export rates table is dated and sourced.
How much solar does Waltham Cross get in December?
December is the low point: about 230 kWh from a 12-panel system in Waltham Cross, on PVGIS data, rising to 790 kWh in July. From November to February the same system makes about 1,110 kWh in total, which is why a battery charged off-peak does more of the work in winter.
How Waltham Cross compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Waltham Cross.
| Town | kWh per kWp a year | vs Waltham Cross |
|---|---|---|
| Waltham Cross | 1,012 | this town |
| Waltham Abbey | 1,016 | +4 kWh |
| Cheshunt | 1,014 | +2 kWh |
| Enfield | 1,025 | +13 kWh |
| Hoddesdon | 1,018 | +6 kWh |
| Loughton | 1,033 | +21 kWh |
| Buckhurst Hill | 1,026 | +14 kWh |
PVGIS v5.2 for each town centroid, identical assumptions throughout. A few kWh either way is weather-year noise; a spread beyond about 30 kWh per kWp is real geography.
Also for Waltham Cross: Solar panels in Waltham Cross from OVO Solar & Battery
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Reading for Waltham Cross homeowners
Sourced, dated and written by us. The same ground we cover on your free call.
The 0% VAT deadline: what ends on 31 March 2027, and what it costs to miss it
The install deadline is still 31 March 2027. Electricity's 0% VAT was extended to the end of June.
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Read the guide →Three phase and EV charging: what actually changes
Three phase buys 22kW charging. Most cars cannot use it, and load balancing usually solves the real problem.
Read the guide →How an air source heat pump actually works
It moves heat rather than making it. The cycle, the efficiency numbers and the trade-offs.
Read the guide →Which tariffs are actually built for battery charging
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Read the guide →NAPIT, NICEIC and competent person schemes: who tells building control about your solar
Solar work is notifiable. A competent person scheme means your installation team notifies, not you.
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.