Renewable energy is generated from natural resources such as sunlight, wind, rivers, oceans, and geothermal heat, which are naturally replenished. Unlike fossil fuels (coal and petroleum products), renewable sources of energy (solar wind, water, and geothermal) are clean and do not pollute the air, water, or land. Like a never ending fire in the sky, the sun releases enormous amounts of heat and light that shower upon the Earth daily. Throughout most of the world, solar energy can be utilized to heat homes and buildings, make electricity, make hot water, and even to cook food. Abundant and clean, solar energy will be of great importance in a world of diminishing finite fossil fuels. Alan Kettler is a visionary, multi-disciplinary designer who brings the power of design to environmental causes. All of his work expresses his love of nature and his deep commitment to helping build a more ecologically sustainable world.