Includes bibliographical references and index.

What is green power?: why we need power and why it needs to be clean -- Hydro electricity: using the power of moving water to spin turbines -- Ocean power: making electricity from the waves and the tides -- Solar heating: using the sun for heating homes and more -- Solar electricity: high-tech materials that use the energy in sunlight -- Wind turbines: clean power from energy in the wind -- Nuclear power: a possible answer to global warming problems -- Geothermal energy: using heat from the depths of the earth -- Biofuels: renewable energy from plants and animal waste -- Cleaner highways: vehicles running on alternative energy supplies -- Saving energy: easy and money-saving solutions to a greener future -- Coming soon?: New power possibilities, from power towers to fusion reactors -- Reference section -- Discovery timeline progress of power, from early steam engines to the solar age -- Glossary terms and concepts explained -- Index.

Examines ocean power, solar heating, and solar and wind turbines.