Solar Energy is a wonderful concept. Take free energy from the sun and use it to power electrical equipment. No ongoing electricity bills, no reliance on an electricity socket. `Free' electricity that does not harm the planet. Generating electricity from sunlight alone is a powerful resource, with applications and benefits throughout the world. But how does it work? What is it suitable for? How much does it cost? How do I install it? This best-selling, internet linked book answers all these questions and shows you how to use the power of the sun to generate electricity yourself. Now in its twelfth edition, this book assumes no previous knowledge. It explains the advantages of solar energy and the drawbacks you need to take into account. As well as explaining the underlying principles, it provides a step-by-step guide so that you can successfully design and install a solar energy system from scratch. The website that accompanies this book includes online solar calculators and tools to simplify your solar installation, ensuring that building your system is as straightforward and successful as possible. Readers can also get in touch directly with the author to ask questions and get further support with their solar projects.