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Download e-book for kindle: Handbook of energy audits [no ch 11] by Albert Thumann; William J Younger

By Albert Thumann; William J Younger

ISBN-10: 0585467080

ISBN-13: 9780585467085

ISBN-10: 0824748158

ISBN-13: 9780824748159

ISBN-10: 0881734233

ISBN-13: 9780881734232

This up to date guide presents more than a few tools and ideas to lessen strength accounts. It offers step by step instructions for hundreds and hundreds of strength conservation possibilities

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Power or Fuel Cost Adjustment This adjustment corrects for differences between your utility's budgeted and actual energy costs. This allows the utility to adjust for uncertainties, such as rapidly changing fuel costs and availability of generation and supply resources, and pass these extra costs directly through to consumers. Demand Charge Electric utilities charge commercial customers based not only on the amount of energy used (kWh) but also on the peak demand (kW) for each month. Demand charges are imposed by the utilities in an effort to be fair to all their commercial customers.

A P-? Figure 4-4. Uniform series present worth (P/A). Capital Recovery—A/P The A/P factor is used to determine an annual payment A required to pay off a present amount P at i percent interest, for n years. If the present sum of money, P, spent today is known, and the uniform payment A needed to pay back P over a stated period of time is required, then Equation 4-10 is used (4-10) © 2003 by The Fairmont Press Handbook of Energy Audits 58 A/P (4-11) A-? Time Periods Years Figure 4-5. Capital recovery (A/P).

By shifting use of major equipment to off-peak hours, you may be able to cut your electric bills without sacrificing comfort or convenience. The more electric consumption you can shift to off-peak hours, the more you will save. To save with time of use rates you need to know what times are considered on-peak and off-peak. Generally, nighttime and early morn- © 2003 by The Fairmont Press 42 Handbook of Energy Audits ing hours are considered off-peak, while afternoon hours are considered on-peak.

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Handbook of energy audits [no ch 11] by Albert Thumann; William J Younger


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