With Minimal Mass and it’s communities we’re aiming to make cleantech and renewable energy more available and more affordable. How we do this? Together! I believe that by sharing our challenges we can overcome any obstacle.


I like to share as much as possible on cleantech and renewable energy. Follow the latest on all the social channels. And I also invite you to share your story. Leave a comment or send me an email.


I’d love to hear about your cleantech business or idea!



Renewable energy technology is taking over the world

Prices are dropping

With a fast pace more and more renewable energy technologies are being designed and existing technology is rapidly improving. Meaning that prices are dropping massively. This makes the technology affordable for and attractive to more and more people. Minimal Mass was founded to speed up this proces. We want to make renewable energy technology affordable, so more people will have access to clean technologies and renewable electricity.


Global need for electricity

Demand is rising

With all our electric devices – our mobile phones, computers, air conditioning and heating- the global need for electricity is huge and will only increase in the near future. According to the International Energy Agency globally over 1.2 billion people are without access to electricity, but do have access to mobile phones. Also their demand for electricity will rise in the years to come.


Inspired by Einstein

Minimal Mass

With only one small solar powered energy system we are able to harvest the endless energy of the sun for many years. Only a small tech device will generate a huge amount of energy. This is the Einstein-principle of minimal mass. Only a small unit of mass can create a large unit of energy.


All about the cleantech

Marleen Mulder

With a solid business development track record in renewable energy and a lifelong fascination for Africa, Marleen set out to combine her European experience with the potential of the South African market. Business strategy consultant for cleantech startups, experienced in building new ventures, especially in renewable energy technology. She’s a keen relationship builder, creative, decisive, focussed, and has a true passion for solar in Africa. She is well connected in the Dutch and South-African solar market.



Read all about the opportunities in both the Netherlands and South Africa here on the website, or contact me directly at [email protected]