爱达荷州立大学中国学生学者联谊会

Chinese Association of Idaho State University (CAISU)

Solar Power and Solar Panels - Are They For Your Home?


One of the most important concerns of the energy inspection The Backpack Electricity System Review  or audit is to assess the structure's envelope. This refers to the barrier between the interior and exterior environment. The quality of the structure and its ability to maintain temperature efficiently and regulate moisture and air flow are key areas of concern. The energy audit includes inspection of the foundation, roof, walls, doors and windows. The specific condition of the components and the types of materials used is assessed as related to air leakage and to determine the Rfactor of these components.

(The Rfactor refers to the component's thermal resistance.). Recommendations are then made as to how to improve on the quality of the envelope's components. These recommendations could include adding insulation, energy efficient windows, sealing doors and windows, insulating the hot water heater and water lines, and sealing and insulating ducts transporting hot and cold air.Typically, the results of the inspection or audit include a report of the findings as well as recommendations on how to improve the energy efficiency of the home. Reports generated by an audit normally include infrared photos which document the report findings. Short and long term recommendations are made and yearly followup assessments scheduled according to the homeowner's needs.

It's important to consider that making your home more energy efficient can save you money. Many utility companies provide incentives to customers for energy efficiency. In the USA, homes use about 20% of the total energy. Of this amount, heating and cooling your home uses about 44%, lighting and appliances about 33%, water heating 14%, and refrigerators about 9%. All in all, your energy efficiency should be at least 3040% above the local building codes.

Right away you can take care of any obvious leaks with sealant and insulation. Then, use smoke on a windy day to locate the smaller leaks that are not easy to find. If you are modifying the insulation in your ceilings or attic, for example, you should aim to raise the Rfactor to R50 or R60, despite the minimum required by local building codes.Survey your windows. If there are obvious areas of leakage or they are not airtight because they are old, single pane or have aluminum or steel frames, then you should consider making some changes. The cheapest method is to add storm windows or to install Plexiglas along the inside of the windows. Plexiglas is a lot cheaper than glass and also conducts heat more slowly than glass

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