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  2. German Renewable Energy Sources Act - Wikipedia

    en.wikipedia.org/wiki/German_Renewable_Energy...

    Development of the EEG surcharge for non-privileged electric energy consumers. Prices are excluding VAT.. The pioneer EEG (spanning 2001–2014) and its predecessor the Electricity Feed-in Act (1991) (spanning 1991–2001) class as feed-in tariff (FIT) schemes, a policy mechanism designed to accelerate the uptake of renewable energy technologies.

  3. World energy supply and consumption - Wikipedia

    en.wikipedia.org/wiki/World_energy_supply_and...

    In the +2.0 C (global warming) Scenario total primary energy demand in 2040 can be 450 EJ = 10,755 Mtoe, or 400 EJ = 9560 Mtoe in the +1.5 Scenario, well below the current production. Renewable sources can increase their share to 300 EJ in the +2.0 C Scenario or 330 EJ in the +1.5 Scenario in 2040. In 2050 renewables can cover nearly all energy ...

  4. Energy policy of the United States - Wikipedia

    en.wikipedia.org/wiki/Energy_policy_of_the...

    State and local energy policies typically relate to efficiency standards and/or transportation. [2] Federal energy policies since the 1973 oil crisis have been criticized for having an alleged crisis-mentality, promoting expensive quick fixes and single-shot solutions that ignore market and technology realities. [3] [4]

  5. Energy in the United States - Wikipedia

    en.wikipedia.org/wiki/Energy_in_the_United_States

    Fossil fuels have long produced most energy in the US, accounting for 84% of total production [22] and 60% of electric generation as of 2023. [14] Although costs for some fossil fuels are declining, renewables are becoming cheaper faster. [23] Despite this, use of fossil fuels has remained near 80% for the past 30 years. [22]

  6. 100% renewable energy - Wikipedia

    en.wikipedia.org/wiki/100%_renewable_energy

    100% renewable energy is the goal of the use renewable resources for all energy. 100% renewable energy for electricity, heating, cooling and transport is motivated by climate change, pollution and other environmental issues, as well as economic and energy security concerns.

  7. Energy conservation - Wikipedia

    en.wikipedia.org/wiki/Energy_conservation

    An energy audit is an inspection and analysis of energy use and flows for energy conservation in a structure, process, or system intending to reduce energy input without negatively affecting output. Energy audits can determine specific opportunities for energy conservation and efficiency measures as well as determine cost-effective strategies. [2]

  8. Supply-side economics - Wikipedia

    en.wikipedia.org/wiki/Supply-side_economics

    The Laffer curve embodies a postulate of supply-side economics: that tax rates and tax revenues are distinct, with government tax revenues the same at a 100% tax rate as they are at a 0% tax rate and maximum revenue somewhere in between these two values. Supply-siders argued that in a high tax rate environment lowering tax rates would result in ...

  9. Energy conversion efficiency - Wikipedia

    en.wikipedia.org/wiki/Energy_conversion_efficiency

    For example, an ideal fuel cell operating at a temperature of 25 °C having gaseous hydrogen and gaseous oxygen as inputs and liquid water as the output could produce a theoretical maximum amount of electrical energy of 237.129 kJ (0.06587 kWh) per gram mol (18.0154 gram) of water produced and would require 48.701 kJ (0.01353 kWh) per gram mol ...