German architect André Broessel, of Rawlemon, has looked into his crystal ball and seen the future of renewable energy. In this case it’s a spherical sun-tracking solar energy-generating globe — essentially a giant glass marble on a robotic steel frame. But this marble is no toy. It concentrates both sunlight and moonlight up to 10,000 times — making its solar harvesting capabilities 35 percent more efficient than conventional dual-axis photovoltaic designs.

Statoil ASA, Norway’s biggest oil and gas producer, will invest as much as $200 million in renewable energy over four to seven years as part of Chief Executive Officer Eldar Saetre’s plan to diversify the company’s portfolio.

Australia’s first household to add a Tesla Powerwall battery can this week begin buying and selling energy on the electricity market, after the addition of a world-leading software program by Canberra company, Reposit Power.