“If even a centuries-old canal house can be made sustainable, it can be done anywhere!”

“The advisors at De Groene Grachten analysed our energy consumption and identified new opportunities for energy savings, which we immediately implemented. Thanks in part to the help of De Groene Grachten, KIT is able to take important steps to realise its sustainable ambitions for the building. The next step we will take together is a sustainable heat grid and even more energy savings.”

"Our installations were in need of replacement and our energy bill was sky-high. Thanks to this conversion, our gas consumption has gone from 36,000 m3 of gas to zero and we are heating the three buildings with outside air and beer cooling. And this is just the beginning, now it’s time for all the student houses!"

"De Groene Grachten represents the first step towards sustainable historical buildings in the Netherlands. Precisely these buildings - which are already very ‘sustainable’ in a sense, because they have often existed for centuries - must also keep up with the times."

"Every little step has meaning, so long as it is a step in the right direction. Here is a new generation that does not wait for politics, but just wants action. I think it's great to see how 'De Groene Gasten' proliferate Wubbo’s ideas"

"Together with De Groene Grachten, we made our National Monument from 1657 more sustainable. De Groene Grachten has provided excellent advice and gave us insight into the possibilities. They also offered assistance with the municipal permit application. We are very satisfied with the result!"

"De Groene Grachten shows that even in a monumental building, energy-efficient living is possible. A wonderful way to give a typical Dutch cultural heritage a sustainable future.”