De Rooij Hoveniers is reassessing its energy supply as the arrival of an electric van changes the company’s consumption. Maartje de Rooij and her partner Rens de Rooij had already made the business more energy efficient with an energy-efficient building and 49 solar panels, and received the title “Sustainable Gardener” last year. They are now considering how to continue making the business more sustainable without unnecessary investment.