Energy Efficiency Efficient Collection

Wind turbines silhouetted at sunset. Wind turbines can be used to generate electricity from wind on a commercial scale. Wind power is an important environmentally-friendly alternative to fossil

Solar-powered flapping wing. Artwork of the solid state aircraft concept developed for the NASA Institute for Advanced Concepts by researchers at the Ohio Aerospace Institute, USA

Turbine at Delabole Wind Farm, Cornwall, UK
Delabole wind farm, Cornwall, England. One of the ten turbines comprising Britains first wind farm. Delaboles ten Danish-built turbines generate 4MW of electricity

Mars wind turbines. Computer illustration of wind turbines on the surface of Mars. They could provide energy for a Martian colony

Jester electric car
MODEL RELEASED. Jester electric car being driven along a road. This car is powered by 102 lithium ion batteries, giving it a range of 341 kilometres and a top speed of 114.7 kilometres per hour

Solar powered aeroplane, artwork
Solar powered aeroplane. Computer artwork of a propellor-driven solar powered aeroplane. This plane does not carry a pilot or passengers

Navigation buoy

Electric cars. Reva is Indias first electric car. It was launched in 2001 in Bangalore in southern India. A fully charged battery gives a driving range of 80 kilometres

Solar heat collector. This device is typically placed on the roof of a building and uses the heat in sunlight to heat water supplies for that building

Rooftop solar heat collectors, London
Rooftop solar heat collectors (large black panels, lower centre) on houses in London, England. The solar heat collectors are using the heat in sunlight to heat water supplies for the houses

Solar power station. This station can generate 5 megawatts of power. Solar power is a renewable source of energy which uses photovoltaic cells to convert the Suns light into electricity

Solar panels used to charge railway batteries
Solar panels. Array of solar panels (photovoltaic cells) in mountains. The cells contain a semiconducting material which converts sunlight directly into electricity

Electric car with solar panels
Electric car. Two-seater electric car. This car has an array of solar panels on its roof which convert sunlight into additional power to supplement its battery

Wind power, artwork
Wind power. Computer artwork of numerous wind turbines in the sea. Wind power is a clean and renewable source of power. The turbine blades are turned by the wind, generating electricity

Solar powered torch on white background

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"Harnessing the Power of Nature: Energy Efficiency at its Finest. " Wind turbines gracefully spin, converting wind into clean and renewable energy. The solar-powered flapping wing mimics nature's efficiency, generating electricity through innovative design. A majestic wind turbine stands tall against the horizon, symbolizing our commitment to sustainable energy sources. Rows upon rows of wind turbines dotting the landscape, a testament to our dedication towards harnessing green power. Witness the awe-inspiring sight of Mars' very own wind turbines, paving the way for interplanetary sustainability efforts. An electric car silently glides along the road, showcasing how energy efficiency can revolutionize transportation systems. Introducing Jester electric car - a playful yet eco-friendly vehicle that combines style with environmental consciousness. Behold an artistic representation of a solar-powered aeroplane soaring high above, redefining air travel with clean energy solutions. Embrace a greener future as electric cars become increasingly popular choices for environmentally conscious individuals worldwide. In this era where climate change concerns are paramount, "energy efficiency efficient" technologies like wind turbines and solar-powered innovations are leading us towards a brighter and more sustainable future in various sectors – from power generation to transportation systems and beyond.