Back to OurEnergyLibrary search

Distribution Grid Impacts of Community Solar

Distribution Grid Impacts of Community Solar

Full Title: Distribution Grid Impacts of Community Solar
Author(s): Miguel Heleno, Juan Pablo Carvallo, Alan Valenzuela, Greg Leventis, Chandler Miller and Jeff Deason
Publisher(s): Department of Energy
Publication Date: September 10, 2023
Full Text: Download Resource
Description (excerpt):

Community solar (CS) projects often face uncertain interconnection costs and fees associated with distribution grid infrastructure upgrades required to connect the project.

These costs can determine the economic viability of a CS project, but they are difficult to assess. Cost uncertainty can discourage new projects and prevent communities from accessing the benefits of community solar projects. At the same time, CS deployment strategies hold potential to defer or avoid some distribution costs due to new loads.

This is the first analysis that has systematically studied the technical impacts of CS projects on a wide range of distribution feeders using state-of-the-art optimization and power flow tools. The analysis employs Berkeley Lab’s novel Least-cost Optimal Distribution Grid Expansion (LODGE) model, a deterministic version of the REPAIR model, that optimally upgrades hundreds or even thousands of distribution circuits or feeders. This is the first application of the LODGE model.

All statements and/or propositions in discussion prompts are meant exclusively to stimulate discussion and do not represent the views of, its Partners, Topic Directors or Experts, nor of any individual or organization. Comments by and opinions of Expert participants are their own.

Sign up for our Press Release Distribution List

    Your Name (required)

    Your Email (required)

    Please sign me up to receive press releases from