What is a dynamic energy contract?

Last updated 24 October 20268 min read

A dynamic energy contract with solar panels: you pay the hourly price. When that fits, also with a home battery, and how feed-in then works.

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With a dynamic energy contract the electricity price follows the market per hour or quarter-hour. Because net metering ends on 1 January 2027, the moment you feed in and buy then counts in your bill. With solar panels you often generate your own power during the day. Dynamic mainly helps with what you still buy besides that, best with a smart meter and use you can shift, with a home battery, an EV charger or smartly controlled appliances.

How does a dynamic contract work?

Solar panels

Instead of a fixed amount per kilowatt-hour, you pay the market price at the moment you draw power. With a dynamic supply rate the price for electricity can change every quarter-hour, hour or day; gas usually has a daily rate. Prices follow the wholesale market: when they fall you notice immediately, when they rise you pay more.

Your supplier must explain the risks upfront and that future costs are hard to predict. How to shift use to cheap hours is covered separately on our page about smart home energy control.

Dynamic, variable or fixed

Three contract types are often confused. With a fixed contract your price is set for an agreed period. With a variable contract your supplier adjusts rates periodically, for example every quarter. With a dynamic contract the supply rate moves continuously with the market.

Fixed, variable or dynamic energy contract

	Fixed	Variable	Dynamic
Price changes	Fixed per contract period	Periodically by supplier	Per hour/quarter (power), day (gas)
Predictability	High	Medium	Low
Smart meter	Not required	Sometimes needed	Required
Cancellation fee	Often yes	Usually not	Usually not

Suppliers must give a tailored offer for dynamic contracts with an explanation of risks.

Smart meter and hourly rates

A dynamic contract requires a smart meter that can record your use per hour or quarter-hour. That way you pay the rate that applied when you consumed. Through your supplier's app or website you usually see the actual rates a day ahead, so you can plan when to charge or run large appliances.

Your grid operator passes meter readings to your supplier; you do not need to submit them manually.

Opportunities and risks

The upside: you benefit from cheap hours, for example at night or on sunny afternoons when a lot of wind and solar power is on the market. The downside: you do not know exactly what you will pay next year. Price peaks in the evening or on cold winter days can hurt if you need to buy a lot then.

Your supplier does provide a forecast in the tailored offer so you can compare contracts. That is an estimate, not a guarantee. Do not compare a dynamic contract one-to-one with a fixed rate without accounting for this risk.

Separate from your supplier rate, grid operators are working on flexible grid tariffs for consumers. That is a separate line on your energy bill. What the proposal entails is covered in our blog on the new grid tariffs.

Dynamic energy contract with solar panels

During the day your solar panels often generate the power your home uses: laundry, coffee, the fridge. What you do not need at that moment goes to the grid. A dynamic contract does not change that.

The contract mainly matters when you still need to buy power in the evening or in winter. Then you pay that hour's market price. Without a home battery or smart charging you shift little, so you still buy at peak moments. With a home battery you keep daytime solar for later, or charge from the grid when the price is low.

Unsure whether dynamic fits your roof and meter? Ask us. We review your use and system.

Dynamic energy contract and a home battery

A home battery turns a dynamic contract into more than a rate on paper. You charge when power is cheap and use that power when the price peaks. That is steering for your own bill, separate from grid control through your supplier. The same applies to an EV charger that loads at night or on cheap hours.

Whether and how your battery links to a dynamic contract depends on your system and the settings. We set that in the quote, not as a default for every system. How self-steering works is on smart home energy control.

Feed-in with a dynamic contract

If you feed in on a dynamic contract, you get the payment that applies at the moment you feed in. On a sunny afternoon, when the whole country feeds in at once, that payment is often low. Using the power yourself or storing it in a home battery is then worth more than sending it to the grid.

Net metering is separate from that. Through 31 December 2026 your supplier may still offset what you feed in against what you draw, whatever your contract type. On 1 January 2027 the net metering scheme ends. After that you get a feed-in payment for everything you feed in, and you pay for everything you draw. How that works is on our net metering page. What you get per kilowatt-hour is on feed-in payment.

Dynamic contract after the end of net metering

As long as you can use net metering, it matters little for your annual bill when you feed in. From 1 January 2027 that changes. Every kilowatt-hour you feed in at a cheap moment earns little, and every kilowatt-hour you buy at an expensive moment costs you the full price plus energy tax and VAT. If you can shift use to moments with your own solar power or low prices, a dynamic contract benefits you most.

Three things to know:

Your supplier sets the feed-in payment. According to the Dutch government (Rijksoverheid), until 2030 it must be at least 50 percent of the bare supply rate. Check your terms for how your supplier applies that on a dynamic contract.
Feed-in costs may only cover the actual costs. The ACM supervises this.
Home battery and VAT: a dynamic contract is one of the conditions for reclaiming the VAT on a home battery, together with an EMS and trading in power. See VAT refund on a home battery.

Frank Energie and your SolarFast system

SolarFast works with one partner for dynamic contracts: Frank Energie. The app shows hourly rates, often a day ahead.

If you take their dynamic contract, or already have one, we link Hyxi, KStar and Sungrow to it. That is not a promise that every battery automatically buys the cheapest hours.

Get more out of your own power. Four things to watch for, even as net metering ends

Your energy use

Planning to drive, cook or heat electrically? Factor that into how many panels you install now.

Spread the yield

Spread panels across roof faces so you generate through the day and use more of your own energy.

Your data

Ask your installer where your system's data is stored and which parties have remote access.

Boost your energy

A smart home battery stores today's power for later, so you use more of your own electricity after sunset.

We install your solar panels in a day

We can often start within three weeks. A day later your panels are on the roof and everything is connected. We leave your home clean and make sure you know exactly how it all works.

Use more of your own power during the day
0% VAT on solar panels on or at your home

The zero rate applies to the supply and installation of solar panels on or at a home. Exception: solar panels integrated into the roof of a new-build home and supplied together with the home.

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Frequently asked questions

You pay the market price at the moment you draw power, per hour or quarter-hour. Rates usually show a day ahead in your supplier's app. Without a smart meter that is not possible.

The same as a dynamic energy contract: you pay the hourly or quarter-hour price at that moment. How that price is set is covered above under How does a dynamic contract work.

With variable, your supplier adjusts rates periodically under your contract. With dynamic, the supply rate follows the market continuously. Dynamic is therefore less predictable, but you can benefit more from cheap hours.

It can be. During the day your panels often generate for you. Dynamic mainly helps with what you still need to buy in the evening or in winter. Without a home battery or smart charging the benefit is smaller, because you still buy at peak moments.

The battery can charge when power is cheap and use that power later when the price peaks. Whether that happens automatically depends on your settings and whether you take a Frank contract or already have one.

You get the payment that applies at the moment you feed in. On sunny afternoons that is often low. Through 2026 feed-in is still netted. From 1 January 2027 it no longer is: then every kilowatt-hour you feed in counts separately. Using it yourself or storing it becomes more important as a result.

It depends on how much use you can shift. After net metering ends, the moment you feed in and buy counts. With a home battery, an EV charger or smartly controlled appliances you can make use of that. Without shiftable use, a fixed contract is more predictable. Compare the options at fixed or dynamic energy contract.

Yes. Without a smart meter your supplier cannot bill per hour or quarter-hour at the dynamic rate.

With dynamic contracts you usually pay no cancellation fee, but terms differ by supplier. The notice period is in your contract; see also the tailored offer.

It can be, if you can shift use to cheap hours. Without smart charging or storage the benefit is smaller and the price less predictable. We do not quote a standard amount; that depends on your meter and system.

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