DELTA Energie: rates, offers and review

The current DELTA Energie rates depend on your contract type. With a fixed contract, you lock in the supply rates for the agreed term. A variable rate can change during the contract. With a dynamic contract, the electricity price follows the wholesale market and gas has a different price every day.

According to the Productvoorwaarden Dynamisch (dynamic product terms) of February 2026, DELTA bases the electricity price on the EPEX Day-Ahead prices per quarter hour. For the invoice, DELTA uses the arithmetic mean of the four quarter-hour prices within each hour. In addition to the market price, you pay, among other things, a purchasing fee, fixed supply charges, taxes and grid operator charges. So always compare the full annual amount and not just the supply rate. Also check when you receive the discount from a DELTA Energie offer. The contract confirmation and separate promotional conditions determine which discount you are eligible for.

DELTA feed-in charges

With fixed and variable contracts, DELTA works with feed-in tiers in 2026. The DELTA feed-in charges work as follows: you pay a fixed amount that belongs to the tier matching the total amount of electricity you deliver to the grid. So the DELTA feed-in charges do not only apply to the surplus that remains after net metering. Slightly exceeding a tier limit can cause a jump in costs. According to DELTA's official overview, the tier and the amount are shown in your offer, your contract and Mijn DELTA.

With a dynamic contract you get a market-based feed-in compensation. DELTA may also charge a selling fee per kWh fed back. That fee can also apply to electricity that is later net metered on the annual statement.

From 1 January 2027, the net metering scheme ends. For new and variable DELTA contracts, charges per kWh fed back will then replace the fixed feed-in tiers. For fixed contracts concluded before 25 September 2025 that continue into 2027, the agreed tiers may, according to DELTA's explanation for 2027, continue to apply until the end of the fixed term.

The available DELTA Energie experiences give a mixed but nuanced picture of this energy supplier. In recent Trustpilot reviews, customers mainly mention the clear communication, an easy sign-up, staff who are easy to reach and a clear app. Criticism often concerns the DELTA Energie feed-in charges, less attractive renewal offers, problems with linked accounts and complex billing questions.

DELTA consistently responds to both positive and negative reviews. That is a good thing, but a response does not, of course, automatically solve the original problem. Also keep in mind that DELTA invites customers to post a Trustpilot review. As a result, the available DELTA Energie reviews are not a representative sample. Moreover, some negative reviews on the profile concern DELTA Fiber and not DELTA Energie.

Is DELTA Energie cheap?

DELTA Energie can be cheap, but it is not automatically one of the cheapest suppliers. The result depends on the chosen contract type, the current discount, the fixed supply charges and (with solar panels) the feed-in charges and feed-in compensation. With the dynamic contract, the times at which you use energy also matter.

Is DELTA Energie reliable?

Yes, DELTA Energie is a reliable energy supplier with valid ACM licences for electricity and gas. DELTA Energie B.V. has been part of Vattenfall since 1 March 2019 and operates from Middelburg as a separate energy brand. Customers often mention accessibility, clear communication and easy sign-up as advantages.

Is DELTA Energie sustainable?

For electricity the answer is yes: according to the electricity label, DELTA supplies 100% renewable electricity, backed by Guarantees of Origin. With DELTA Puur Zeeuws Groen you specifically choose electricity from Zeeland wind and solar projects. The other green electricity mix also contains electricity from outside Zeeland. The gas offering is not fully sustainable. DELTA MixGroen Gas consists of 2% green gas and 98% natural gas.

Does DELTA Energie have a good app?

The DELTA Energie app is mainly a practical management and consumption app. You can use it to track your electricity consumption and feed-in, view advice on your instalment amount, adjust the instalment amount, consult bills and report a move or meter readings. The app therefore offers the most important functions, but is less focused on automatically controlling devices than the apps of some fully digital, dynamic suppliers.

How do I switch to DELTA Energie?

You apply online at DELTA Energie for the fixed, variable or dynamic contract you want. With a normal switch at the same address, DELTA normally arranges the cancellation with your old supplier. Check the end date of your current contract in advance and, if necessary, ask for an estimate of the cancellation fee. For a dynamic contract you need a readable smart meter and a MijnDELTA account.

How can I review DELTA Energie?

You can share your experience via Google, Trustpilot or another review platform on which DELTA Energie is active. You can also leave a review of the app in the Apple App Store or Google Play. Do make sure that you are reviewing DELTA Energie and not telecom provider DELTA Fiber. EnergieAanbieding.nl processes the available reviews in the overview every week and includes both positive and critical experiences.