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Building Science

减少我们的碳足迹 - 第二部分

ClimateSmart is a joint effort across Boulder County designed to help individuals, families and businesses increase their energy efficiency and reduce their carbon footprint.

Boulder County’s Climate Smart loan program

Part Two: A deeper level of action

减少碳足迹的第一步是了解您使用的能量。能源效率通常比可再生能源替代品更具成本效益。目标是在相同数量的加热,冷却,照明以及电源,立体声,电视和iPod的动力上使用较少的能量。幸运的是,大多数能源效率措施的巨大好处是长期在房屋中创造更大的舒适感。

Our home was built in 1992–93, and we still have an extensive list of opportunities for reducing our energy footprint. Statistics show that 60% of U.S. homes are underinsulated or not insulated at all, and homes built before 1980 likely fall into this category. Air leakage is one of the leading causes of energy waste. By plugging those leaks, we can save 5% to 30% on home heating and cooling bills — an average of $450 per year for an American household.

能源审核可以为房主提供个性化的计划,以降低能源账单并最终减少碳足迹。该计划绘制了能源使用情况,并为行为改变提供了建议,所有这些都是节省能源和金钱的最终目标。

对于我们的下一步,我们将寻找固定在该物业的能源效率措施,平均用途寿命为15至20年(或更长时间),并且超过最低标准。

以下是探索您自己的能源足迹的下一步列表:

Air Sealing and Ventilation

  • Sealing around windows and doors, ductwork, plumbing, and electrical penetrations, attic bypasses, etc.
  • 改进之前和之后的鼓风机门测试
  • 热恢复呼吸机(HRV),可节省加热能力并改善空气质量
  • Whole-house or attic fan with multiple speeds and timer or thermostat

Insulation

  • 将开放式阁楼绝缘材料最大化至最低R-38*
  • 最大化壁绝缘至R-19
  • 加入泡沫或吹纤维素,以减少墙壁和阁楼的空气泄漏
  • Install perimeter foundation insulation with R-10 minimum
  • Install floors over unconditioned space with R-19 minimum

Space Heating and Cooling

  • Install a high efficiency furnace that exceeds 90% annual fuel utilization efficiency (AFUE) rating, plus sealed combustion
  • Install boiler with 84% or greater AFUE
  • Upgrade central air conditioner to 14 SEER and 11 EER or higher for packaged systems
  • 安装可编程恒温器*

Lighting

  • Use compact fluorescent lighting, which is 75% more efficient than incandescent and lasts much longer
  • 安装LED照明
  • 安装计时器或传感器
  • Maximize daylighting by adding light shelves and tubular skylights with movable insulation

Windows, Doors, and Skylights

  • 升级外部窗户和玻璃门升至0.35或以下的U-Value使用低E玻璃
  • Install insulating shutters
  • 隔离外门最小R-8值
  • 使用低E玻璃添加可移动的隔热材料,以0.35或以下的U值为.35

也请参考Michael Maines的博客“窗户上的灯”

Roof (Reflective)

  • 使用浅色的带状疱疹或
  • Energy Star—rated metal roofing

电器

  • 选择能量星评级模型

请注意,在过去的几十年中,冰箱效率提高了60%。

补充上述概述的能源效率措施,研究可再生能源措施:

  • Solar hot water
  • Solar electricicity (photovoltaics or PV)
  • Wind power
  • Wood/pellet stoves

Net metering (where the meter may run backward in sunny seasons) can produce much or all of the domestic electricity supply. Ask your solar equipment supplier or utility about rebates and RECs.

最大的价值 - 地球andthe homeowner — is in combining energy-efficiency and renewable-energy measures. My engineer husband laughs at me when I say that my goal is for us to be carbon neutral — I’m trying!

最近,我们安装了我们能找到的最节能的能量星电器。去年,我们升级到了高效(92%的炉灶)炉,以及较新的可编程恒温器。我们安排了16岁房屋的鼓风机门测试。对于我们来说,看到我们每月可以切入多少千瓦时,这已成为一款游戏。我仍在努力摆脱车库中的“啤酒冰箱”;我将在上面安装一个千瓦仪表,以便我可以收集其浪费的证明!我会及时向大家发布。

如果您想挑战自己,请为减少日常活动创建的温室气体排放(二氧化碳)设定目标 - 驾驶我们的汽车,加热我们的房屋,购买食品和产品 - 清单还在继续。查看众多carbon calculatorsavailable on-line, and make it fun to reduce your footprint!

一条评论

  1. 安·埃德明斯特(Ann Edminster)||#1

    很棒的清单,安妮特!最近
    很棒的清单,安妮特!最近,我一直在思考一个观点,在一个行业中,这是“效率第一”背后统一的小牛 - 即,即,即有时在改造情况下,首先查看可再生能源可能会更经济和/或后勤意义。效率措施可能确实具有破坏性且昂贵 - 例如,如果添加隔热材料将意味着打开否则未计划进行重塑的墙壁。

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