EIE Renewables, a wholly owned subsidiary of Enviro Infra Engineers, has entered into an agreement to acquire PRA Bihar Bess, a special purpose vehicle of Barbrik Projects set up to implement a 37.5 MW/150 MWh battery energy storage project in Bihar.

The company has signed a share purchase and options agreement to acquire a 49% equity stake in the target company. The remaining 51% stake is expected to be acquired within 60 days of the project’s commercial operation date.

The acquisition is expected to be completed at a cost of ₹155.1 million (~$1.86 million).

In 2025, Barbrik Projects won the battery storage project under Bihar State Power Holding Company’s 125 MW/500 MWh battery storage auction.

The project has signed a battery energy storage purchase agreement with Bihar State Power Holding Company and its distribution subsidiaries at a tariff of ₹444,000 (~$5,337)/MW/month for 12 years.

The project has an estimated capital expenditure of ₹1.5 billion (~$18 million), which is expected to be funded through a mix of internal accruals and debt from financial institutions.

It may also be eligible for viability gap funding support of up to ₹2.7 million (~$32,450)/MWh.

The acquisition is intended to expand EIE Renewables’ energy storage portfolio and geographic presence, according to the filing.

Last year, the company acquired a 49% equity stake in Soltrix Energy Solutions for ₹13.2 million (~$153,352).

The same year, Enviro Infra Engineers also completed the acquisition of Vento Power, which is developing a 40 MW solar project in Odisha.

In January 2026, EIE Renewables won the West Bengal State Electricity Distribution Company’s auction to install 10 MW of grid-connected rooftop solar systems.

The same year, EIE Renewables won ITI’s auction to set up a 10 MW ground-mounted solar project at Naini in Uttar Pradesh.

According to the 2H & Annual 2025 India’s Energy Storage Landscape Report by Mercom India Research, the country added nearly 547 MWh of battery energy storage capacity in 2025, around 26% year-over-year increase from over 433 MWh. India’s cumulative installed battery energy storage capacity reached almost 1,082 MWh as of December 2025.