Lights, sensors, smart thermostats and smart plugs are just the beginning.
Apple is spending €1.7bn on two new data centers in Ireland and Denmark, each run entirely on renewable energy, and will test wind storage systems.
Google is developing secret power grid plan based around energy software and hardware, and led by clean-tech guru Arun Majumdar.
Apple says 94% of its corporate facilities and 100% of its data centers now powered by renewable energy sources such as solar power.
Aside from being eco-friendly, solar also adds up to a competitive business advantage for some of America’s largest corporations.