Construction on a 40 megawatt (MW) solar generation power plant is under way at a former military base in the Saxon region of Germany. The total surface area of the planned photovoltaic (PV) installation? It's comparable to about 200 soccer fields, said Matthias Willenbacher, cofounder and CEO of the juwi group.

"Construction of the world's biggest plant of this kind is a real challenge for a medium-sized enterprise like the juwi group. In Brandis we're building on an area of more than a million square meters. By contrast, most house roofs, for example, comprise only 40 to 50 square meters." -- Matthias Willenbacher, juwi group, CEO