basics:energy_and_ecology:renewable_sources_of_energy
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basics:energy_and_ecology:renewable_sources_of_energy [2010/08/10 10:21] – edit | basics:energy_and_ecology:renewable_sources_of_energy [2015/09/12 21:46] – [Renewable sources of energy] wfeist | ||
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+ | ====== Renewable sources of energy ====== | ||
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+ | // There are great potentials in improving efficiency, and in addition, energy efficiency and renewable energy go hand in hand for solving the issue of climate protection.// | ||
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+ | The Passive House is a perfect example for this: | ||
+ | * more than a third of the total energy consumption of a Passive House in a typical cool moderate climate can be covered by **hot water collectors** – because a Passive House requires more energy for the generation of hot water than it does for the heating. Thermal collectors are the best solution for the provision of hot water. (The figures are even better in warm moderate climates and in "lucky climates like California: it could be 50% to full cover.) | ||
+ | * The remaining demand is so small in Passive Hosues that it can be met in a fully cost-effective way by renewable energy, e.g. by buying a **share in a wind power plant** – this has already been implemented in practice (example in illustration). | ||
+ | * **Photovoltaic systems** can also contribute significantly to the supply of energy //in Passive Houses//. But let us be honest: The contribution of photovoltaic systems to " | ||
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+ | |{{ : | ||
+ | |//**The Passive House development in Hannover Kronsberg is supplied with energy from\\ renewable sources: solar collectors for hot water generation - and electricity comes\\ from this wind turbine near the development.**// | ||
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+ | Due to the very high energy efficiency of the Passive House, there are increased opportunities for an adequate supply of energy though renewable sources. For one thing, the technical prerequisites are excellent: with low consumption **even minimal power supplies** are sufficient; and smaller power densities are a characteristic of renewable energy sources; for another thing, the cost-efficient implementation takes place in a better way: if the energy consumption is very low, the price for a kilowatt hour of conventional energy supply will usually be relatively high. In the Passive House, however, this doesn' | ||
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+ | |**//With constantly high energy consumptions, | ||
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+ | The more the " | ||
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+ | * less burden on social funds (through noticeably increased employment) | ||
+ | * additional tax revenue (due to added value) | ||
+ | * increase in buying power (due to less energy costs) | ||
+ | * the reduction in CO< | ||
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+ | |{{ : | ||
+ | |// | ||
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+ | ===== See also ===== | ||
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+ | [[basics: | ||
+ | \\ | ||
basics/energy_and_ecology/renewable_sources_of_energy.txt · Last modified: 2019/02/21 10:05 by cblagojevic