Credit 2: On-site Renewable Energy 1–7 Points Intent To encour

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试卷: EA 节能与大气[查看]
Credit 2: On-site Renewable Energy
1–7 Points

Intent
To encourage and recognize increasing levels of on-site renewable energy self-supply to reduce environmental and economic impacts associated with fossil fuel energy use.

Requirements
Use on-site renewable energy systems to offset building energy costs. Calculate project performance by expressing the energy produced by the renewable systems as a percentage of the building’s annual energy cost and use the table below to determine the number of points achieved.
Use the building annual energy cost calculated in EA Credit 1: Optimize Energy Performance or the U.S. Department of Energy’s Commercial Buildings Energy Consumption Survey database to determine the estimated electricity use.
The minimum renewable energy percentage for each point threshold is as follows:
Percentage Renewable Energy Points
1% 1
3% 2
5% 3
7% 4
9% 5
11% 6
13% 7

Potential Technologies & Strategies
Assess the project for nonpolluting and renewable energy potential including solar, wind, geothermal, low-impact hydro, biomass and bio-gas strategies. When applying these strategies, take advantage of net metering with the local utility.

EA C2: 现场可再生能源
1–7分

目的
鼓励采用现场可再生能源，增加自己能源供给，减少使用化石能源带来的环境和经济影响。

要求
使用现场可再生能源来折减建筑能源费用，通过计算工程中由可再生能源替代的建筑年能耗费
用比例，对照下表，确定可再生能源得到的分值。
建筑能耗费用取EAC1项目中所采用的年建筑能源费用值。优化建筑能效或采用美国能源部商用
建筑用能调查数据库来确定用电量。
最低可再生能源替代比例所对应的分值标准：
可再生能源比例；得分
1% 1
3% 2
5% 3
7% 4
9% 5
11% 6
13% 7

技术措施和策略
工程可利用的无污染或可再生能源包括太阳能、地热能、生态小水电、生物质能和沼气技术。
采用这些措施时，利用当地的电力公司电网计量。