Site and Source Energy table

The Site and Source Energy table at the Summary tab outputs the source and the site energy of your model.

The Source energy is related to the energy provided to your building from power plants, whereas Site energy is the energy consumed in the site by your building.

Therefore, source energy is always higher than site energy because it accounts for inefficiencies and losses along the way from the power plant to your building.

Total Site Energy: This is the total amount of energy consumed on-site (at your building), including all energy sources (e.g., electricity, heating, cooling, etc.). It doesn't account for the losses during generation and transmission.

Net Site Energy: This is the total energy consumed on-site after accounting for any on-site energy generation (e.g., if you have solar panels, this subtracts the energy you produce). It reflects the actual energy you need to take from external sources like the utility company.

Total Source Energy: This is the total energy required to produce and deliver the energy to your site, including the losses during energy generation and transmission. It’s a broader measure because it accounts for the energy used upstream to generate and deliver the energy you consume at your site.

Net Source Energy: This is similar to Total Source Energy, but it accounts for any energy you generate on-site and feed back into the grid (like from solar panels). This reduces the total source energy requirement since you’re offsetting some of the energy needs.