Weekly Solar Insights: What Changed for Home Solar in Germany, the UK and Italy (Week of 21 July 2026)

July 22, 2026

Welcome back to Weekly Solar Insights, your friendly Monday-morning catch-up on what's changing for home solar in Germany, the UK and Italy. No jargon, no sales pitch - just the handful of things worth knowing this week if you're weighing up panels or a battery for your own roof.

Germany: a feed-in cut is coming, and a bigger question sits behind it

If you're in Germany, keep two dates in mind. The feed-in tariff (Einspeisevergütung) steps down on a fixed schedule, and the rates for new systems fall by about 1% every six months, with cut-off dates on 1 February and 1 August^[1]. For a system that mainly exports surplus power, the rate sits at 7.78 cents per kWh in 2026^[2]. So a system switched on before 1 August locks in a slightly higher rate than one switched on after.

The bigger story is what might happen in 2027. Germany's economics ministry has floated a proposal to abolish the fixed feed-in tariff for new small rooftop systems up to 25 kWp from 1 January 2027^[3]. It's still a draft working its way through parliament, not final law, and the final version may look different. The reasoning is that panels have become cheap enough that self-consumption alone now makes many home systems pay - but if you like the certainty of a guaranteed export payment, it's worth knowing the rules could change.

Here's the reassuring part: if you commission your system and register it in the Marktstammdatenregister before 31 December 2026, your rate is locked in for 20 years^[2], and existing systems keep their rate no matter what the new law says. There's no need to panic - just something to factor into your timing.

United Kingdom: bills went up on 1 July, which quietly made your own solar worth more

The headline number: the Ofgem price cap rose to about £1,862 a year for a typical household on 1 July 2026, an increase of roughly 13%^[4]. Every unit of electricity you make and use yourself is a unit you no longer buy at that higher price, so the value of self-generated solar just went up without you doing anything.

On the export side, the Smart Export Guarantee (SEG) is set by each supplier, not capped, and the deals vary a lot. Some of the strongest rates this month include Octopus Intelligent Flux paying up to around 32p per kWh in peak export windows if you have a battery, and Good Energy offering about 25p per kWh with no battery needed^[5]. It's a good reminder to check your export tariff - some have dropped sharply, with British Gas cutting its SEG rate from 15.1p to 8p^[6], so the supplier you export to genuinely matters.

Italy: the 2026 bonuses are confirmed - and generous

Good news for Italian homeowners: the Budget Law confirmed the main support measures for 2026 rather than trimming them. The headline incentive is the IRPEF tax deduction, worth 50% of the cost on your main home and 36% on a second home, calculated on spending up to €96,000 and paid back over ten years^[7] through your tax return.

If money is tight, the Reddito Energetico Nazionale can cover a small home system up to 6 kW at no cost for households with an ISEE below €15,000 (rising to €30,000 for families with at least four dependent children)^[8]. And if you'd rather share a system with neighbours, Renewable Energy Communities (CER) can receive grants covering up to 40% of the installation cost^[9]. Italy already tends to have one of the shortest payback times in Europe, and these incentives are part of why.

The one thing that ties all three together

Across all three countries, the pattern this week is the same: exporting power to the grid is getting less rewarding, while using your own solar at home is getting more valuable. That shifts the smart move toward sizing a system for your actual daytime use - and thinking about whether a battery helps you use more of what you make.

The honest answer always depends on your roof, your bills and your habits. If you'd like to see real numbers for your own home rather than national averages, try the free Solar Roof Planner - trace your roof on a satellite map and get an estimate of panels, system size, yearly output, savings and payback in a couple of minutes. No sign-up, no pressure. See you next week.