How much do solar panels cost in 2026?
Published 21 June 2026
A home solar install in 2026 costs €800–2,300 per kWp before incentives, or about $2.50–3.00 per watt in the US. That puts a typical 4–6 kWp system at roughly €5,000–12,000 before grants, and less after. The exact figure depends on your country, your roof access, and which incentives you still qualify for.
A typical home solar installation in 2026 costs between €800 and €2,300 per kWp installed before any grant or tax break, a band that covers most markets from low-cost Australia to high-access-cost Ireland. For a 4–6 kWp system, that puts the sticker price roughly between €5,000 and €12,000 before incentives, and meaningfully less after. What you actually pay depends on your country, your roof, and which incentives you still qualify for.
Solar pricing refuses to give you one number, because the figure swings with where you live, how big a system you fit, and which incentive you qualify for. This post gives you the ranges that matter, then shows you how to read your own quote against them.
Cost by system size
Most homes fit somewhere between 3 and 10 kWp. The table below shows the rough installed price across the regional band above, before incentives. Output figures assume a well-oriented roof at a mid-latitude European or southern-Australian site; your actual yield depends on latitude, roof pitch, and shading.
| System size | Typical annual output | Illustrative installed cost (before incentives) |
|---|---|---|
| 3 kWp (~7–8 panels) | 2,700–3,600 kWh | €3,500–7,000 |
| 5 kWp (~12 panels) | 4,500–6,000 kWh | €5,500–11,000 |
| 8 kWp (~18–19 panels) | 7,200–9,600 kWh | €8,000–17,000 |
| 10 kWp (~23 panels) | 9,000–12,000 kWh | €10,000–22,000 |
Costs are illustrative ranges derived from the €800–2,300/kWp regional band. They are denominated in EUR for European and globally comparable reference; if you are in the US or Australia, use the calculator for a local-currency figure based on your address. We model your output from the actual climate record for your coordinates, not a national average. Before you size anything, read how to size a solar system so you match the array to your consumption instead of your roof area.
Doubling the system size does not double the price. You pay for the scaffolding, the design, and the trip once, then spread it across more panels. Bigger arrays cost less per kWp.
Where your money actually goes
Break a €10,000 quote into parts and you can see what you are paying for.
Panels (25–35%). The modules themselves have become the cheap part. A tier-one monocrystalline panel costs the installer far less than it did five years ago. If a salesperson pushes a premium panel brand as the reason for a high price, ask what the rest of the quote covers, because the glass is rarely where the money sits.
Inverter (10–15%). This box turns DC from the roof into AC for your home. You choose between one string inverter or per-panel microinverters. Microinverters cost more and earn their keep on roofs with shading or multiple orientations. A simple south-facing roof rarely needs them. See solar inverters explained for a full comparison.
Installation labour (20–30%). Two or three trained people spend a day or two on your roof. Their time, certification, and the electrical work to tie into your consumer unit make up a large slice. Labour rates explain much of the gap between a London quote and a Brisbane one.
Scaffolding and access (5–15%). This is the line most quotes hide and most homeowners forget. A two-storey house, a steep pitch, or awkward access can add €1,000 or more before a single panel goes up. A bungalow with a flat-roof extension barely needs any. When two quotes differ by a thousand euros, scaffolding is often the reason.
Everything else (10–20%). Mounting rails, DC cabling, isolators, the grid-connection paperwork, and the installer's margin and warranty all live here.
How much do solar panels cost by country?
The €800–2,300 band tracks real differences between markets. The figures below come from our sourced country data; all installed costs are net of VAT where the local rate is zero.
| Market | Installed cost | In EUR/kWp (approx.) | Source |
|---|---|---|---|
| Australia | A$1,350/kWp gross (~A$900/kWp after STC) | ~€820 gross / ~€550 post-STC (at A$1 ≈ €0.61, Jun 2026) | Solar Choice Price Index, Jun 2026 |
| Netherlands | €1,200–1,500/kWp (0% VAT) | €1,350 model | Bobex / Consumentenbond, 2026 |
| Germany | €1,100–1,500/kWp (0% VAT) | €1,300 model | gruenes.haus / 42watt, 2026 |
| United Kingdom | £1,500–2,000/kWp (0% VAT) | ~€2,000 model | Heatable / Checkatrade, 2026 |
| Ireland | €1,500–2,000/kWp (0% VAT) | €1,975 model | solarinfo.ie / energyefficiency.ie, 2026 |
| United States | $2.50–3.00/W (~$2.58/W avg) | ~€2,350 model | EnergySage, 2026 |
At the low end sit Australia and parts of India, where high competition, light scaffolding needs, and strong subsidy drive prices down. A 6.6 kWp system in Australia typically lands around A$4,000–6,500 after the federal STC rebate is applied at the point of sale (Solar Choice Price Index, June 2026; SolarScorecard 2026). The EUR equivalent in the table above uses the approximate mid-2026 exchange rate of A$1 = €0.60 (ECB reference rates).
The middle band, roughly €1,200–1,700 per kWp, covers the UK, Germany, and the Netherlands. Mature supply chains keep kit cheap, but labour and access push the total up.
Ireland and the top of the range covers remote regions and any home with a heritage listing, a slate roof, or difficult access. Irish installers quote €1,500–2,000/kWp (0% VAT included), with a typical 4–5 kWp system running €7,000–10,000 before the €1,800 SEAI grant (solarinfo.ie, 2026; energyefficiency.ie, 2026). Smaller, fragmented installer markets carry higher overheads, and they pass them on.
The United States runs on its own metric, cost per watt, and sits around $2.50–3.00 per watt gross for a residential system (national average ~$2.58/W, EnergySage 2026). US pricing looks high next to Australia, but state-level incentives change the picture in many markets, which brings us to what you actually pay.
What you pay after incentives
The sticker price is rarely what leaves your account. Here is where each major market stands in 2026. Check these before you sign, because incentives move.
| Country | Key incentive | What it means in practice |
|---|---|---|
| Australia | Federal STC rebate (~30% of gross cost) | Applied as a point-of-sale discount; your quote already shows the post-STC price |
| United Kingdom | 0% VAT on residential solar until 31 Mar 2027, then 5% | Saves roughly £1,000–2,000 on a typical install (calculated: 20% standard rate applied to a £5,000–10,000 system); relief is embedded in quoted prices |
| Germany | 0% VAT (Nullsteuersatz, open-ended) on residential PV up to 30 kWp | Saves roughly €1,800–2,000 (calculated: 19% standard rate applied to a €9,500–10,500 system); already in net prices (BDEW 2026) |
| Ireland | SEAI grant confirmed at €1,800 for 2026 | A flat capex reduction on top of the quoted price (pv magazine, Nov 2025; SEAI) |
| Netherlands | 0% VAT (embedded in prices); net metering ends 1 Jan 2027 | No capex grant; economics shift sharply when netting disappears (Business.gov.nl) |
| United States | No federal residential credit in 2026 | The 30% §25D credit expired 31 Dec 2025 under the One Big Beautiful Bill (P.L. 119-21, signed 4 Jul 2025). Leases/PPAs may still use §48E through 2027, but that is a third-party arrangement, not homeowner ownership (IRS OBBB FAQ; SEIA) |
A note on 0% VAT markets (UK, DE, NL). Where VAT is zero-rated, installers quote net prices, so the incentive is already embedded in the number you see. There is no separate deduction to claim at tax time. The savings figures in the table above are calculated ranges (standard rate applied to a typical system cost), not independently surveyed figures.
A note on the Netherlands. Through 31 December 2026, exported solar electricity nets 1-for-1 at the full retail rate. From 1 January 2027, net metering (the salderingsregeling) is fully abolished. Parliament approved the end date in November 2024; the Senate confirmed it in December 2024. Model your savings on self-consumption rather than export value, or add a battery.
A grant lowers the price. It does not tell you whether the investment makes sense. A €1,800 grant on a system that saves you €400 a year behaves very differently from the same grant on one that saves €900. We run honest payback, NPV, and IRR on your numbers using free, resale-permitted government climate data from PVGIS, NASA, and NREL, so you see the return before you ever speak to a salesperson.
To weigh the full economics, read solar panel payback, NPV and IRR and is solar worth it in 2026. If you are adding storage, the numbers shift again; check when a solar battery pays before you bundle one in.
So what should you budget?
Take the system size that matches your usage, multiply by the per-kWp figure for your region, then subtract the incentive you qualify for. For most homes fitting a 4–6 kWp array, that lands somewhere between €5,000 and €12,000 before incentives, and meaningfully less after. Get three quotes, check the scaffolding line on each, and compare the return, not just the price.
Frequently asked questions
What does a 4 kWp solar system cost in 2026?
In most of Western Europe, a 4 kWp system runs €5,000–8,000 installed before incentives. In Germany or the Netherlands, prices net of 0% VAT sit toward the lower end of that range. In Ireland, the SEAI grant of €1,800 comes off your quote directly. In the UK, 0% VAT is already in the price you see.
Has the US solar tax credit gone?
Yes. The 30% federal residential credit (§25D) expired on 31 December 2025 under the One Big Beautiful Bill (signed 4 July 2025). Homeowners who buy and own a system in 2026 get no federal credit. Leases and PPAs from a third-party provider may still qualify under §48E through 2027, but you would not own the panels. Some states (New York, Arizona, and others) still offer their own credits.
How much does solar cost in Australia after the rebate?
A 6.6 kWp system in Australia typically costs A$4,000–6,500 after the federal Small-scale Technology Certificate (STC) rebate, which the installer applies at the point of sale. The STC deeming period dropped from six to five years on 1 January 2026, so the rebate is slightly smaller than it was in 2025 and continues to deflate toward the scheme's end around 2030.
Does net metering still work in the Netherlands?
Through 31 December 2026, yes: exported solar electricity credits your bill at the full retail rate. From 1 January 2027, net metering (the salderingsregeling) is fully abolished. After that date, your energy supplier sets its own export rate, which will be well below the retail price. Self-consumption and home batteries carry the return for systems installed now.
Why do solar quotes vary so much between installers?
Scaffolding and access costs are the most common hidden variable. A two-storey house, a steep pitch, or awkward site access can add €1,000 or more before a panel goes up. Panel brand, inverter type (string vs microinverter), and whether the quote includes grid paperwork also vary. When comparing, ask each installer to break out scaffolding, panels, inverter, and labour as separate lines.
Estimate only, not a quote. Figures use local climate data and average tariffs; your installer's quote will be exact.
The economics of going solar
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