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Books > Professional & Technical > Energy technology & engineering > Alternative & renewable energy sources & technology
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Integration of Renewable Energy Systems (Hardcover)
Loot Price: R2,720
Discovery Miles 27 200
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Integration of Renewable Energy Systems (Hardcover)
Series: Technologies for Sustainable Life (TSL) - Concise Monograph Series
Expected to ship within 10 - 15 working days
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Energy efficiency measures are generally less expensive than a
renewable energy (RE) system to provide the same amount of energy
saved. The Energy Information Administration reports that, on
average, a dollar spent on efficiency saves $2 off the cost of a
renewable energy system to provide the same amount of energy [IEA,
2011]. But as the saying goes "you can't save yourself rich" and
having installed sophisticated controls and efficient systems, we
need some source of energy to power them. On-site renewable energy
systems offer several advantages, especially when operated in
concert with a larger utility system. The main reasons to consider
RE is cost-effectiveness, but other reasons are as diverse as:
reduction of atmospheric emissions; compliance with regulations
requiring RE; enhanced reliability through redundant energy supply;
abate risks related to fuel availability and cost, or risk of
fuel-spills during delivery; score points in a sustainability
rating; or as a mitigation measure in a larger
environmental-permitting process. Renewable energy technologies
used on buildings include daylighting; solar photovoltaics; solar
water heating; solar ventilation air preheating; passive solar
heating and cooling load avoidance; wind power; biomass heat (or
cogeneration as discussed in Chapter 8); anaerobic digestion of
waste; and geothermal heat. Ground source heat pumps are also often
considered, in-part, RE systems. Daylighting and the envelope
measures (passive heating and cooling) are often considered
efficiency measures, but daylighting is a direct and obvious use of
solar energy in buildings, and photovoltaics (PV), Solar Water
Heating and Solar Ventilation Air preheating are technologies to
consider on any building project. We even consider an example of
hydroelectric power on the water supply to a building. We cover the
operating principle of each type of system, list components and
provide schematic diagram of how components are assembled into
systems; provide information for cost estimate and life cycle cost
calculation, describe how system size may be optimized to minimize
life cycle cost, and we stress the importance of operations and
maintenance (O&M) over a long performance period. Significant
emphasis is placed on integration of RE into the conventional
utility system, at both the site level and from the perspective of
the larger utility system, so that savings due to the RE may be
realized without compromising the reliability of the system. Case
studies are presented to exemplify application of each technology.
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