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... active-and-passive solar hot water technologies have different location-specific economic cost benefit analysis implications. Fundamental passive solar hot water heating involves no pumps or anything electrical. ...
Passive solar buildings aim to maintain interior thermal comfort throughout the sun''s daily and annual cycles whilst reducing the requirement for active heating and cooling systems. Passive solar building ...
... using sunlight through passive solar, active solar, and photovoltaic techniques and using plants and trees through green roofs, rain gardens, and for reduction of rainwater run-off. Many other techniques, ...
... for several decades if the active tank volume is at least three times the yearly addition. This is because the waste dramatically decreases in volume: after around 5 years only 1-2% of the original volume ...
... single-slope, double-slope (or greenhouse type), vertical, conical, inverted absorber, multi-wick, and multiple effect. These stills can operate in passive, active, or hybrid modes. Double-slope stills ...
... energy requirements by 25%.  An important active solar lighting method is the hybrid solar lighting (HSL). HSL systems collect sunlight using focusing mirrors that track the Sun and use optical fibers ...
... solar design package. Active solar equipment such as pumps, fans and switchable windows can complement passive design and improve system performance.  Urban heat islands (UHI) are metropolitan areas with ...
... these variations. Solar technologies are broadly characterized as either passive or active depending on the way they capture, convert and distribute sunlight. Active solar techniques use photovoltaic panels, ...
... into two groups: Active solar heating uses pumps which move air or a liquid from the solar collector into the building or storage area. Passive solar heating does not require electrical or mechanical equipment, ...
... states, resulting in little or nothing being done in many parts of the country. Outside the U.S., energy recycling is more common. Denmark is probably the most active energy recycler, obtaining about 55% ...
Taxonomy by Zaragoza Online