Despite the fact that in most countries, technology is developing at great speed, there are countries that still have no electricity.Obviously, without electricity is difficult to use the latest technological advances.
NASA prolonged the flight program of its first solar sail satellite, called NanoSail-D, from the initial 120 days for a few months later.
Many modern companies are beginning to transfer their production by using solar energy.
Solar Battery includes multiple layers of photovoltaic cells laminated on a substrate of gallium arsenide.
A University of Arizona engineering team led by Roger Angel has designed a new type of solar concentrator that uses half the area of solar (PV) cells used by other optical devices and delivers a light output/concentration that is over 1000 times more concentrated before it even hits the cells.