Solar Power: it's ready now, so why the wait?

Residential, commercial and public sector electricity demand is responsible for about half of global electricity consumption. Solar energy can be a powerhouse behind our commercial and residential buildings even in colder climates. The integration of photovoltaics (PV) cells, which convert sunlight into electricity, into roofs and facades could turn buildings from net users of energy into net generators. Switching from fossil fuels to solar will make a major contribution in preventing dangerous levels of climate change.