REopt (falsely?) suggesting 100% renewable electricity generation?

[kmsunflower]

Hello, I am running a microgrid analysis for a site in North Carolina. I set a minimum renewable electricity target of 20%. The results suggest that during normal course of business, the facility is served by the grid and by onsite solar generation. However, it is showing that annual renewable electricity as a percent of total electricity consumption is 100%. It seems to be suggesting that the grid is 100% renewable. Am I missing something to ensure it does not register it this way? Thank you.

[adfarth]

Hello, currently, REopt's renewable energy accounting only accounts for the renewable energy content of on-site generation, and does not account for renewable electricity from grid-purchased electricity. By default, REopt does count renewable electricity exported to the grid (e.g. from on-site solar PV) in its renewable energy calculations. I would guess that that is what is happening in your case (i.e., total solar generation, including export to the grid, equals the site load). If you would like to not count exports to the grid towards the RE %, you can select "No" to the question "Count exported renewable electricity towards renewable energy goals?" under the "Renewable Energy & Emissions" accordion.