BSD-151: Understanding Primary/Source and Site Energy
This document explains how these two types of energy are accounted for differently and why.
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This document explains how these two types of energy are accounted for differently and why.
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Site Energy is the combination of primary and secondary energy that you buy directly for use at your building. It is calculated in Portfolio Manager by converting each of your fuels into kBtu,
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For buildings that purchase raw fuel (such as natural gas) and convert it to power on-site, a site energy measurement would account for the losses that occur during this conversion, because site energy is
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SITE ENERGY The amount of energy metered at the point of use (e.g. consumed by a building) Refers to both primary energy (natural gas or fuel consumed on site) and secondary energy (heat or
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The site energy for a building is all of the energy used in the building - plug loads, lighting loads, all equipment power (gas, electric, etc) - as calculated by meters on site.
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Includes the primary energy (natural gas, petroleum products, and renewable energy) and the electricity used in the building. Includes small-scale solar electricity generated and consumed on-site, such as
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Delivered energy is sometimes referred to as "site" energy. Source energy consumption is defined as delivered energy plus the energy losses associated with the production of electricity by the utility
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Source energy accounts for total energy use tility bills. Looking at site energy can help you understand how the energy use for an individual building has chan ndary energy. Primary energy is the raw fuel
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Site energy may be delivered to a building in one of two forms: primary or secondary energy. Primary energy is the raw fuel that is burned to create heat and electricity, such as natural gas or fuel oil used
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For buildings that purchase raw fuel (such as natural gas) and convert it to power on-site, a site energy measurement would account for the losses that occur during this conversion, because site energy is
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Commercial buildings use different mixes of energy including electricity, natural gas, fuel oil, district steam, and many others. To evaluate energy performance for these buildings, we have to express
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