solar panels on flat roof
Solar systems are made up of a number of planets that orbit around a star. Our Solar System is one example of a sundial system. There are many solar systems that can be found.
The city has an average of 300 sunny days each year. This makes it the ideal location for solar power installations.
Canberra, Australia's capital, is powered by electricity. It is a beautifully planned city. Every building and street has its proper place.