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I have solar panels and a dynamic contract

  • By Stekker Support
Three revenue layers at once. Why your own solar power yields extra ERE, and what an average household earns per year.

The optimal combination: three revenue layers at once

Do you have solar panels and a dynamic energy contract? Then you’re in the ideal Stekker position. You earn in three ways simultaneously:

  1. Quarter-hour price savings — charging at the cheapest moments
  2. ERE revenue — earning on every green kilowatt-hour
  3. Congestion payment — getting paid for peak-demand dampening (still in development)

The combination works because all three use different market mechanisms. Without you having to do anything.

Why your own solar power is worth extra

Under the new 2026 ERE scheme, every charged kWh counts equally for ERE revenue, including your solar. The benefit of solar sits in a different layer: you avoid the grid purchase price (including taxes and VAT) every time you charge from your own solar.

For 5,000 kWh per year (around 25,000 km) and a self-consumption of about 25% from solar, you save hundreds of euros on your energy bill. This layer comes on top of your ERE revenue and any quarter-hour price savings.

How does the orchestration work?

Stekker plans your charging sessions based on all signals at once:

  • Daytime with lots of sun: the car charges on your own solar power. Maximum ERE, no grid purchase.
  • Daytime without sun: Stekker looks at quarter-hour prices. Is the day-ahead price low? Charge. High or even negative? Wait, or even feed back.
  • Evening and night: often the cheapest moment. Stekker tops up if you need to be full by morning.
  • Winter evening peak: a congestion signal from the grid operator can trigger a brief pause — and you get compensated for it.

You tell us when the car should be full. Stekker finds the optimal path to get there.

A scenario for an average household

Consider a household with:

  • An EV driving 25,000 km/year (5,000 kWh charged)
  • 8 solar panels (3.2 kWp), of which about 35% can be charged directly into the car
  • A dynamic contract (Tibber, ANWB Energie, Frank Energie, or similar)

Based on average ERE market prices in 2026 (€0.14 per ERE, middle scenario):

  • Quarter-hour price savings: around €250 per year (€0.05 per kWh × 5,000 kWh)
  • ERE revenue: around €500-800 per year, based on ca. 10 cents per kWh net (current consumer ERE market price)
  • Congestion payment: working figure €20 per year, about four winter months × €5 average peak-dampening (will grow as the scheme matures)

Indicative total: €750-1300 per year. Higher with more km, sun or a dynamic contract; lower with less. Calculate your situation in the calculator.

Gotchas to know

A few things Stekker accounts for, but good to understand:

  • Sun = peak = sometimes negative prices. At very high solar production on a sunny afternoon, the market price can even go below zero. Stekker may decide to charge a lot (getting paid to charge) or do nothing (to not worsen congestion).
  • Feeding back instead of charging. Sometimes it’s smarter to feed solar power to the grid (at high price) than into the car. This requires V2G/V2H (bidirectional charging) — not yet widely available, but coming.
  • Home battery. With a home battery added, the calculation gets even more complex — and more interesting. Stekker can optimize multiple assets simultaneously.

What if I only have solar panels, no dynamic contract?

You miss layer 1 (quarter-hour price savings) but keep the ERE benefits. Layer 2 still works fully thanks to your solar. Switching to a dynamic contract can yield an extra €150-250 per year — check if that fits your consumption pattern.

More information

Netherlands only. This article describes Stekker’s ERE proposition, which relies on Dutch market infrastructure — the Nederlandse Emissieautoriteit (NEa), IBAN-based bank transfers and Dutch tax regulations. Stekker currently only offers ERE participation to Dutch residents and businesses.
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