What's an LGP, and Why Does It Matter for Solar?

In California’s interconnection plan, a Limited Generation Profile (LGP) allows a project to limit its output at certain times to fit within existing grid capacity, without waiting for major transmission upgrades:

✅ Instead of delaying a project for years until new infrastructure is built, developers can accept operational constraints such as limited generation during peak demand hours or seasons.

✅ The profile defines in advance when and how much the project can export to the grid.

✅ It’s a voluntary agreement — developers choose whether to adopt an LGP or not for each project.

Why it matters for solar:

Projects get online faster, even if they can’t operate at full capacity 100% of the time.

The grid is used more efficiently to avoid costly overbuilding.

Developers can still generate strong returns, especially for solar + storage systems that can shift exports to off-peak times.

For instance, if a solar project would overload a transmission line during midday peaks but the line has spare capacity in the morning and evening, the developer might accept an LGP that limits their midday output but allows full export at other times — avoiding a multi-year wait for a new line.

We're excited to see this new approach to streamlining grid connection and meeting urgent clean energy demands more quickly!