About

EnergyAssembler builds the grid we want our kids to inherit.

Founded 2008 in Ahmedabad. 340 engineers. Offices in Gujarat, Karnataka, Tamil Nadu and Maharashtra. Independent, owned by the people who run it.

We started as a substation engineering firm.

In 2008, the Indian grid was bursting with ambition but short on disciplined execution. We started with one substation and a borrowed crane, and built outwards from there — to wind, then solar, then storage, and now hydrogen and grid-scale flexibility.

Today we engineer, build and operate over 3.4 GW of installed capacity. Our backbone is still the same: fewer than 1% rework rate, 98% on-time delivery, and the same lead engineers staying on a project from feasibility study to second-year O&M.

2008
Founded · first substation in Mehsana
2014
First wind farm commissioned
2018
Crossed 1 GW installed
2022
Launched Colligated platform
2025
First green H₂ pilot live

Building something at utility scale?

Tell us about your project — generation, transmission, storage, or hydrogen. We will respond within one working day.

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