Feed-in tariffs after 2027: What happens when the guarantee runs out?
- May 21
- 4 min read
Cloover’s Head of Operations and Energy, Florent Erdbar, joined the inaugural episode of the My Solar Express (MSE) podcast at the invitation of host Dimitri Kuzin. The question they tackled is one the whole industry is sitting with:
How does photovoltaic hold up over the next 20 years once today’s support structure is gone?
At a glance:
PV systems commissioned by 31 December 2026 would lock in Germany’s fixed feed-in tariff for 20 years – under the reform as currently drafted.
From 1 January 2027, the proposed EEG reform would eliminate this guarantee for new installations. Spot market trading would take its place.
Self-consumption optimisation with battery storage and energy management remains the decisive lever – regardless of how the reform ultimately lands.
A system runs for 20 years. Which architecture stays adaptable over that period matters more for long-term economics than the commissioning date.
What the proposed 2027 reform would change
Today’s rule in Germany: 7.78 cents per kilowatt-hour, fixed for 20 years from the date of commissioning. Under the proposed amendment to Germany’s Renewable Energy Sources Act (EEG), this guaranteed rate would end for new installations under 25 kWp from 2027 onward. Spot market trading – where operators sell excess generation at real-time prices – would replace it. With a well-configured setup, more than 6.5 cents per kilowatt-hour is achievable.
The final shape of the law is not yet settled as of May 2026. The EEG amendment was delayed to 27 May 2026 after criticism, and confirmed details are still pending.
Germany is not acting alone here. Across the EU, fixed feed-in guarantees for residential solar are being phased out or restructured. The underlying logic is the same everywhere: solar has reached cost parity, and blanket subsidies are giving way to market-based mechanisms.
Feed-in stops being passive income
What lies ahead is a market in which grid-exported electricity is no longer a fixed, passive revenue stream. Without battery storage and intelligent coordination, anyone feeding power into the grid from 2027 onward would almost certainly be selling it at a loss – if the reform passes as proposed.
That sounds harsh. It is, however, the sign of a maturing market. Fixed tariffs are replaced by a system that rewards smart technology, routes private generation where it adds most value, and keeps grids stable. A network of many, controllable systems is also a step toward energy independence – and stays attractive for end users.
The largest savings for PV owners is, and will remain, actually using the electricity they generate. The reform makes clear why battery storage and intelligent consumption management matter. Even under ideal conditions, 100% self-consumption is not realistic – not if the system is supposed to stay profitable.
This is where a home energy management system (HEMS) comes in. Cloover’s PULSE handles spot market participation directly. It coordinates feed-in, battery use, and consumption so every kilowatt-hour earns the best available price. With PULSE, those same returns are consistently achievable on exported power.
Smart meters and Germany’s grid curtailment scheme
For self-consumption and spot market trading to work, one technical prerequisite is essential: the smart meter. Without it, dynamic tariffs and dynamic grid fees cannot function, and consumption cannot be settled in 15-minute intervals.
Germany currently sits at around 5% smart meter penetration. Most EU neighbours are above 90%.
The bottleneck is with distribution grid operators, who can barely keep up with installations. A faster route runs through competitive metering operators. With Cloover: around six weeks. The standard wait is six to nine months.
Anyone connecting a heat pump, EV charger, or larger battery (with more than 4.2 kW inverter output) to the grid also qualifies under Germany’s §14a EnWG – a grid curtailment scheme that lets operators briefly throttle certain loads during peak demand in exchange for a discount. The annual grid fee reduction runs from €110 to €190. In practice, throttling almost never happens. The discount arrives regardless.
The second, often overlooked decision: architecture
A PV system runs for 20 years or more. Over that period, battery generations change, EV chargers learn bidirectional charging, tariff and trading models shift, and regulatory frameworks evolve. Which architecture stays stable through those two decades carries more long-term weight than the commissioning date.
The end of the guaranteed tariff does not have to affect the economics of a PV investment – provided the system can adapt to market conditions over its lifetime. That is what open, hardware-agnostic systems make possible. Storage can be replaced at the best price. Tariffs can be switched. A new trading partner can be chosen – without discarding the whole system.
The architectures we enable at Cloover communicate with third-party devices via open standards. Components can be swapped, tariffs switched, trading partners changed – without scrapping everything else.
The first decision – when the system goes live – has a one-time effect on feed-in tariff eligibility. The second – how it is built – applies to every component replaced over the next 20 years. The second is the bigger lever.
Outlook
Solar remains an economically attractive investment after the reform – provided the core support mechanism survives the final legislative round. What changes is not whether it pays off, but how.
A passive feed-in business becomes an active, two-pillar model. What stays in the house offsets expensive grid electricity. What flows out is sold on the market at the best available price. Both pillars only work if the system is built for them – and if its components can evolve with the market over the decades ahead.
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