The juice is sourced from solar panels and wind turbines and heat from biogas. In addition they have backup wood chip furnace. They also have fairly beefy battery of 10 MW capacity to help level the fluctuations in production. The village runs its own grid and pay less for energy.
News articles: The Independent [independent.co.uk], The Huffington Post [huffingtonpost.com], GreenBiz [greenbiz.com].