Elk Hill solar 1 and 2
Advancing SEPTA’s sustainability goals with two local Pennsylvania solar projects
42MWdc
of clean, locally generated energy
20%
of SEPTA's annual electricity demand met
200
jobs created during construction
48,000
metric tons of CO2 emissions reduced every year
10,400
equivalent fuel-burning cars
Site selection & preliminary design
Stakeholder outreach
Permitting & environmental studies
Land management & biodiversity planning
Final engineering, financing & construction
Operation & maintenance
Decommissioning & recycling
The Southeastern Pennsylvania Transportation Authority (SEPTA), among the largest transit agencies in the United States serving the Greater Philadelphia region, and Lightsource bp signed a long-term power contract for two solar projects in Franklin County, Pennsylvania.
The projects, Elk Hill Solar 1 and 2, are helping advance energy and sustainability priorities for both SEPTA and the Commonwealth by generating enough clean and affordable solar energy annually to meet nearly 20 percent of SEPTA’s electricity demand – the equivalent of providing energy to more than 6,300 US homes each year.
Elk Hill 2 entered commercial operation in 2021, and Elk Hill 1 came online in 2022. Lightsource bp financed and built the two solar farms and will continue to own and operate them over the projects’ lives.
In addition to providing low-cost, locally generated renewable energy, Elk Hill 1 and 2 created an estimated 200 jobs during construction, hiring local subcontractors and recruiting from the local labor pool.
A long-term biodiversity and land management action plan is underway for both projects, in order to maximize local sustainability benefits through habitat creation and co-located agriculture to farm the land while also harnessing solar energy. Both Elk Hill Solar 1 and 2 will be planted with grazing and pollinator friendly seed mixes that contain native wildflowers and clover species. Lightsource bp is working with a local farmer on a plan to graze sheep to manage the vegetation under and around the solar panels. Managed grazing also works to improve soil health and foster healthy ecosystems.
Elk Hill Solar Coverage
SEPTA and Lightsource bp sign power purchase agreement
Solar farm designed to lower SEPTA’s carbon footprint now operational
Solar farm FAQs
We’ve put together a list of the most commonly asked questions, and their answers.

Stories
Find out more about our Responsible Solar approach in Pennsylvania
Solar farm, living laboratory: Lightsource bp’s Nittany solar projects in Pennsylvania
Learn about research at our sites
First Lightsource bp U.S. agrivoltaics program launches in Pennsylvania
Solar grazing is a win-win-win
Recycling and lifecycle management of solar panels
Our commitment to recycling solar panels
Get in touch
If you’d like to find out more about this project, email USCommunityRelations@lightsourcebp.com. We aim to get back to you within five working days.
If you are a member of the media, please visit our Press Center.

Complaint Filing Procedure
Complaints can be submitted through the following means:
- US Community Relations email address: uscommunityrelations@lightsourcebp.com
- Lightsource bp office phone number: 1 (415) 523-0200
- US Mail: Elk Hill Solar, 400 Montgomery Street, 8th Floor San Francisco, CA 94104
Complaint Review Process
Our designated staff will contact the complainant within five (5) business days of receiving a complaint. During this call or email, we will confirm the issue, identify the relevant site, and establish the best way to stay in touch. We will also provide a specific timeframe for follow-up.
All complaints are logged in our stakeholder management platform to track progress and resolution time. A subject matter expert (SME) will work on finding a resolution and provide updates as needed.
We are committed to resolving complaints as quickly as possible and will provide regular updates. In some cases, unexpected delays may occur, or a complaint may be deemed unresolvable. If this happens, we will inform the complainant and explain the situation.