In numbers that count:
Solar energy in terawatt hours (TWh) per day: 1,500,000,000
Annual energy requirement of the earth’s population in TWh: 100,000
Time it takes the sun to do this, in hours: 3

With around 70% coverage of your own needs, new solar systems continue to provide cost protection and clean electricity. In the case of old systems with a remaining term of 5 years, it is even worth replacing them with more powerful systems – thanks to more returns from the feed-in.

Says the real estate association Germany IVD. Investing in a solar system is not only a sustainable but also an economically good idea: protecting the environment and saving money at the same time.