The short answer
For most owner-occupied homes in Belfast and across Northern Ireland with a reasonable roof, yes — solar is worth it in 2026, and it's a better case than it was two or three years ago. Electricity is expensive, installations are 0% VAT until 31 March 2027, the panels carry 25-year warranties, and a battery lets you use far more of what you make. It isn't worth it for everyone, and we'll say so when it isn't — more on that below.
We're a Belfast solar and battery installer that started life as an electrical contractor, so this is written from the roofs we actually work on, not a national average.
What solar costs in Northern Ireland in 2026
Our three packages are the ones we quote at the door:
- Essential Solar — from £4,200 installed. A panel system designed for your roof: all-black panels with 25-year warranties, a monitoring app, battery-ready for later.
- Smart Energy System — from £6,750 installed. Solar with integrated battery storage (Hinen, Sigenergy or EcoFlow) and smart energy management, so you use far more of what you generate. This is the one most households choose.
- Premium Home Energy System — priced at survey. Bigger battery, whole-home backup and EV charging designed in, for high-usage homes.
Every price includes installation, NICEIC certification and the NIE Networks connection paperwork, and it's all 0% VAT — the price we quote is the price you pay. Exact figures come from the free survey, because your roof, your usage and your supply decide the system.
Where the savings actually come from
Solar saves you money in two ways, and they are not equal.
- Using your own electricity. Every unit your panels make that you use at home is a unit you don't buy from your supplier at the full retail rate. This is where most of the value is.
- Being paid for export. Units you don't use go to the grid and your supplier pays you for them. In Northern Ireland that's through your supplier's own export tariff — Power NI, for example, pays 9.64p per kWh exported for 1 October 2025 to 30 September 2026. Useful, but a fraction of what a unit costs you to buy.
That gap is the whole design problem. A typical 4 kW system in Northern Ireland generates somewhere around 3,000–3,500 kWh a year, most of it between March and October and most of it in the middle of the day. If the house is empty at noon, a plain solar system exports the bulk of that at the low export rate. A battery keeps it for the evening; a hot-water diverter such as the myenergi eddi soaks surplus into the immersion; an EV charger set to follow solar puts it in the car. Get those right and a household can cover a large share of its annual electricity from its own roof. Get them wrong and the payback stretches.
We won't print a savings figure here because we don't know your usage yet. At the survey we model your generation from the actual roof pitch, orientation and shading against your real consumption, and give you a fixed quote with a figure you can hold us to.
Does solar actually work in Northern Ireland's weather?
Yes. Panels run on daylight, not heat — they generate on grey days and on cold, bright winter days. Output is lower in winter than summer, which is exactly why sizing, a battery and paid export matter: they smooth the year out. East-west roofs, which people assume are a problem, often suit family routines better than a pure south roof because they spread generation across morning and evening. Coastal homes need the right fixings and IP-rated kit, and we spec for that as standard.
Export payments — it isn't the Smart Export Guarantee here
A lot of what's written online about export payments is written for Great Britain. The Smart Export Guarantee is a GB scheme and does not operate in Northern Ireland. What we have instead is supplier export tariffs approved each year by the Utility Regulator. You need an export-capable meter and the system registered with NIE Networks — G98 for smaller systems, G99 for larger ones — we register the system with NIE Networks and give you every document the supplier needs to pay you for export — and help you through the sign-up if you want. Solar export payments in NI, explained goes through the detail.
Grants: the honest position
There is no government grant for domestic solar panels in Northern Ireland at the moment, and schemes you'll read about elsewhere — ECO4, the old Feed-in Tariff — either never applied here or have closed. The support that does exist is 0% VAT on solar and battery installations until 31 March 2027 (after which the rate is due to go to 5%), plus the export payments above. For EV chargers there are separate OZEV grants for renters, flat owners, landlords and workplaces. Anyone promising you a solar grant in NI is selling something.
Is a battery worth adding?
Usually, yes — and sometimes the battery is the better half of the investment. It stores the daytime surplus for the evening, it can charge on cheap overnight rates and run the house at peak prices, and the systems we fit — Hinen A Series, Sigenergy SigenStor and EcoFlow PowerOcean — can keep the essentials on in a power cut. They carry 10 to 15 year warranties. The Smart Energy System from £6,750 is solar and battery together; see battery storage for how we size them.
When solar isn't worth it
- A roof that's heavily shaded all day, or only faces north.
- A roof that needs re-covering in the next few years — do that first.
- Very low electricity use, nobody home in the day and no battery — the numbers get thin.
- You're moving within a year or two. Solar improves a house; it doesn't always pay back on that timescale.
We'd rather tell you that at the survey than sell you a system that disappoints.
How to decide
Book the free survey. We measure the roof, check the board and the supply, model generation against your bills and give you a fixed written quote — no estimate that grows on install day. If it doesn't stack up, we'll say so. Solar panels in Belfast and NI has the packages and the process, or call 028 9691 8755.
Questions people ask
How long do solar panels last?
The panels we fit carry 25-year warranties and are designed to keep producing well beyond that; inverters and batteries carry their own 10 to 15 year warranties. The monitoring app flags any drop in output early.
Do I need planning permission for solar panels in Belfast?
Usually not. Most domestic roof installations in Northern Ireland are permitted development, as long as the panels project no more than 200 mm from the roof and sit below the ridge. Listed buildings and conservation areas are the exception — we check before anything is ordered.
How long does a solar installation take?
Most homes are one to two days on site, with scaffolding up a day or two before. We test, certify and hand over the monitoring app before we leave.
Will solar panels add value to my home?
They improve the EPC and cut the running costs a buyer inherits, which increasingly matters. We don't promise a specific uplift in price — nobody honestly can.