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Low energy efficiency is already a major problem for petrol and diesel vehicles. Typically, only 20% of the overall well-to-wheel energy is actually used to power these vehicles. The other 80% is lost through oil extraction, refinement, transport, evaporation, and engine heat. This low energy efficiency is the primary reason why fossil fuel vehicles are emissions-intensive, and […] … learn more→
Tag Archives: Energy efficiency
Why battery-powered vehicles stack up better than hydrogen
Cooling the urban heat island with more reflective roofs
Can a whiter roof make your home cooler? What about your whole city? The existing literature and theory suggests that increasing the albedo – or reflectiveness – of a building will reflect incoming sun light and associated heat, reducing the building’s cooling requirements and also reducing the “Urban Heat Island” effect. The City of Melbourne […] … learn more→
