Installation & Commissioning
Mechanical & electrical install through energization and acceptance testing.
Services · Battery Energy Storage
Battery Storage Services.
One accountable, self-performing team across the full battery lifecycle — installation & commissioning, O&M, retrofit & upgrade, and decommissioning & recycling. The low-risk execution partner for utility-scale storage and the data-center power buildout.
What we deliver
End-to-end BESS services.
We bring the same execution rigor across the full battery lifecycle — whether you need one phase or the whole loop.
Operate & Maintain
Long-term O&M that protects uptime, warranty, and performance.
Retrofit & Upgrade
Augmentation, controls upgrades, and remediation on live fleets.
Decommissioning & Recycling
Safe end-of-life teardown, removal, and battery recycling — closing the loop.
A track record measured in gigawatts, not promises.
Verified delivery · 2014–2026 0 GWh
Serviced to date
Installation, commissioning & O&M
0 +
Projects delivered
Across the U.S. + international
0 +
Field technicians
Self-performing crews
0 yrs
In electrical & BESS
Founded in 2013
Featured work
Real assets. Energized.
A look at projects we've taken from foundation to grid-compliant operation — and fleets we've brought back to earning.
Desert Quartzite — 750 MWh
Commissioning and long-term O&M on a 750 MWh standalone storage asset in Blythe, California — energized clean and kept earning.
Improving BESS availability in Southern Texas.
Site availabilityOct 2025 – Mar 2026
~30% → 88%
availability recovered on a confidential Southern Texas site after GreEnergy took over O&M.
Why GreEnergy
The execution partner you need when the project has to land.
Complex storage projects fail in the gaps — between scopes, between subs, between mechanical completion and a compliant asset. We're built to close them.
Operational excellence
Written procedures, hold points, and documented sign-offs on every energization — backed by a safety record that beats the industry benchmark.
0.88 EMR — safer than the industry average
Full service in-house provider
One prevailing-wage service provider, fully compliant and in-house across the critical path. No layered subs, no finger-pointing.
1 provider, foundation to grid
On-time and on-budget
Senior people on site, proactive communication, and clean documentation your tax authority and the utility will actually accept.
100% of active sites have daily reporting
Who we work with
The developers, IPPs & asset owners who hire us.
We deliver for the owners and developers building out America's storage fleet — from utility-scale projects to the behind-the-meter systems powering the data-center boom — and they bring us back to the next project.
BESS Data Centers Government Education Healthcare EV Charging
Utilities Developers IPPs & Asset Owners
APS
APS 
Representative counterparties · select engagements
Let's talk scope
Move forward with confidence, not risk.
Tell us about your project — phase, timeline, and platform. We'll bring the team that gets it energized, commissioned, and kept running.
Installation ·Commission ·O&M ·Retrofit ·Upgrade ·Decommission ·Recycle