The Importance of Improving Energy EfficiencyThe Importance of Improving Energy Efficiency

EfficienciesEfficiencies

Using Solar Energy to Provide Heat and ElectricityUsing Solar Energy to Provide Heat and Electricity

Passive solar heatingPassive solar heatingActive solar heatingActive solar heating

Using Solar Energy to Provide High-Temperature Heat and ElectricityUsing Solar Energy to Provide High-Temperature Heat and Electricity

Solar thermal systems-tracker/concentratoror power towers

Solar thermal systems-tracker/concentratoror power towers

Photovoltaic (PV) cells Photovoltaic (PV) cells

Producing Electricity from Moving WaterProducing Electricity from Moving Water

Large-scale hydropower Large-scale hydropower

Small-scale hydropower Small-scale hydropower

Pumped-storage hydropower Pumped-storage hydropower

Tidal power plant Tidal power plant

Wave power plant Wave power plant

Producing Electricity from WindProducing Electricity from Wind

Producing Energy from BiomassProducing Energy from Biomass

BiofuelsBiofuels

Biomass plantationsBiomass plantations

Crop residuesCrop residues

Animal manureAnimal manure

Biogas Biogas

Ethanol Ethanol

MethanolMethanol

Geothermal EnergyGeothermal Energy

Geothermal reservoirsGeothermal reservoirs

Dry steamDry steam

Wet steamWet steam

Hot waterHot water

Molten rockMolten rock

Hot dry-rock zonesHot dry-rock zones

Geothermal ReservoirsGeothermal Reservoirs

The Solar-Hydrogen RevolutionThe Solar-Hydrogen Revolution

Extracting hydrogen efficientlyExtracting hydrogen efficientlyStoring hydrogenStoring hydrogenFuel cellsFuel cells

Electric and Hybrid CarsElectric and Hybrid Cars

Rechargeable battery systems Rechargeable battery systems Hybrid electric-internal combustion engine Hybrid electric-internal combustion engine Fuel cells Fuel cells

Solutions: A Sustainable Energy StrategySolutions: A Sustainable Energy Strategy