We are happy to welcome you as a new Vaanster Energie costumer. We are a 100% sustainable Dutch energy supply company and have specialised in the supply of heating and cooling to private and business costumers for the past 10 years.

By choosing sustainable energy you are contributing towards a better environment together with us, now and in the future. Please watch our demo video. Should you have any questions after watching the video, please refer to our Frequently Asked Questions. where you will find the answers to your questions.

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How does a WKO-system work?

WKO-storage is a complex system that can be clarified the easiest with help from a video.
Check it out and whenever you still have questions afterwards, please read through our FAQ.

Can we help you?

Get in touch with us: 0900-82267837 or klantenservice@vaanster.nl