Like a growing number of German small businesses, home-owners, schools, hospitals and industrial plants, Meier has opted for energy self-sufficiency.
Of the about 600 terawatt hours Germany consumes each year, 50 TWh are self-produced -- about eight percent of the total -- in a trend that has seen solar panels installed on home roofs and gas plants set up in factories.
In industry, the share is around 20 percent, according to business and energy consumers groups. Their main goal: cost savings.
Home-made power in Germany, which has among Europe's highest electricity bills, is not taxed unlike conventional electricity where one third of the customer's bill goes into the public coffers.