The 260MW Impact Solar project in Texas from Lightsource bp. Image: Lightsource bp. Solar developer Lightsource bp has signed a power purchase agreement (PPA) with fast food giant McDonald’s for a 145MWac/180MWdc PV project in Louisiana. McDonald’s... 

Wind and solar power have gotten so cheap that other forms of renewable energy have been relegated to science labs and the dustbins of history. As wind turbines and solar farms sprout around the world, investments in other technologies that produce power...