SOLAR – Our most abundant source of renewable energy is the light and heat that radiates from the Sun, and can be harnessed using a range of continually-evolving technologies. The amount of solar energy available on Earth is vastly more than the world's current energy requirements, and could easily satisfy all future energy needs.
WIND – Wind power uses turbines to convert the kinetic energy of wind into electricity. A wind turbine’s rotating blades turn an internal shaft that drives a system of gears to increase the speed of rotation, which then powers a generator that produces electricity.
HYDROPOWER – Like wind power, hydropower is one of the oldest, and still the world's leading source of clean energy. It also uses spinning turbines to produce energy, but instead of wind, it uses falling or fast-running water. Hydropower turbines are built into dams or under waterfalls, enabling them to capture the natural power of flowing water.
BIOMASS – Biomass materials come from living things. The most common such materials are wood, plants and waste. Our first choice is always to recycle biomass as materials for our products. Where recycling biomass is not possible, our second choice is to use it for energy.
GEOTHERMAL – Geothermal energy is the heat that is continuously being produced inside our planet from both its original formation in our solar system, and from radioactive decay of minerals. This energy can be found worldwide, but is most easily harnessed when it’s closest to the earth's surface, such as areas with volcanic activity or natural hot springs.