*Energy use, cost data and calculations are made using the Lawrence Berkley Home Energy Saver API. This site is powered by Berkeley Lab’s Home Energy SaverTM calculation engine, but is not endorsed or certified by Berkeley Lab. User data collected by Berkeley Lab will be treated according to the HES privacy policy and will only be shared with the entity that originally submitted the data via the API data exchange process (i.e. the program or website you are currently using).
Your actual energy use and savings will vary depending on, among other things, household occupancy and location, historic energy use, installed improvements and individual house characteristics.
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