Investing in the power behind a stronger America.
MainStreet Energy Partners acquires and builds the specialized contractors who construct, modernize and maintain the nation's electric grid.
Demand is rising faster than the grid can be built.
Artificial intelligence, domestic manufacturing, electrification and population growth are driving the largest increase in U.S. electricity demand in a generation. Much of the infrastructure that must carry that power is decades old.
Utilities have the capital plans. What they need are qualified contractors with the crews, equipment and approvals to execute them. That is where we invest.
New load
Data centers and reshored industry require new substations and interconnections on accelerated timelines.
Aging assets
Transformers, switchgear and protection systems installed decades ago are due for replacement and modernization.
Scarce capacity
Utility-approved contractors are few, and many are owner-operated businesses that need capital to grow or a plan for succession.
Long-term capital for the companies that build the grid.
We partner with experienced operators and stay invested for the long run, adding capital, structure and discipline while the people who earned the utility's trust keep running the work.
Acquire
Established electrical and utility contractors with proven approvals, safety records and customer relationships.
Capitalize
Growth capital for crews, equipment and estimating capacity, so qualified companies can take on larger, higher-value work.
Build
A connected platform of operating companies that share capital, systems and talent across the Western United States.
Across the electric power value chain.
Substation construction
Civil, primary electrical, wiring, protection and control for new and upgraded substations.
Transmission and distribution
The lines, equipment and services that move power from generation to communities.
Grid modernization
Equipment replacement, relay upgrades and resilience work on aging infrastructure.
Energy storage and new generation
Interconnection and electrical scopes for battery storage and next-generation power assets.
Specialized electrical services
Testing, outage support and technical services that utilities depend on.
Built on companies that already do the work.
Southern California utility substation contractor
A founder-led contractor fully approved by a major investor-owned utility, delivering civil, primary electrical, wiring and testing scopes, with a record of zero reported safety incidents.
Established electrical contractors across the West
We are evaluating additional utility-qualified businesses, including owner-operated companies planning for succession, in California, Nevada, Arizona and beyond.
Operators, partners and press.
If you lead a utility contractor considering growth or succession, or you are reaching out on behalf of the media, we would like to hear from you.