CESC awards 600 MW ISTS hybrid projects to Vismaya Renewables, Purvah Green, Hexa Climate, and Sprng Energy
By Global Infrastructure Sherpa · Feb 27, 2026
Calcutta Electric Supply Corporation has awarded 600 MW of ISTS-connected wind-solar hybrid projects to Vismaya Renewables, Purvah Green, Hexa Climate Solutions, and Sprng Energy.
Deal Analysis
Calcutta Electric Supply Corporation (CESC) has awarded 600 MW of ISTS-connected wind-solar hybrid projects to Vismaya Renewables, Purvah Green, Hexa Climate Solutions, and Sprng Energy. This development deal signifies CESC's commitment to diversifying its energy portfolio and incorporating renewable energy sources. The projects, located in India, will contribute to the country's growing hybrid energy capacity, leveraging both wind and solar resources for a more consistent power supply. Sprng Energy, a known renewable energy developer, is among the counterparties, suggesting a level of experience and expertise involved in the project's execution. The other developers, Vismaya Renewables, Purvah Green, and Hexa Climate Solutions, are less known based on the provided information. The financial details of the deal remain undisclosed, making it difficult to fully assess its economic impact.
The award of these projects to multiple developers suggests a strategic approach by CESC to distribute risk and potentially benefit from diverse expertise. The ISTS (Inter-State Transmission System) connection is crucial, enabling the generated power to be transmitted across state lines, contributing to a more integrated and efficient national grid. The announcement date of 2026-02-27 indicates a forward-looking perspective, suggesting a planned timeline for project development and commissioning. The absence of signing and closing dates implies that the deal is still in its early stages, with further negotiations and agreements likely to follow.
- 600 MW of ISTS-connected wind-solar hybrid projects awarded.
- Calcutta Electric Supply Corporation (CESC) is the offtaker.
- Sprng Energy, a renewable energy company, is one of the developers.
- The projects are located in India, contributing to the country's renewable energy goals.
Market Context: India's renewable energy sector is experiencing significant growth, driven by government policies and increasing demand for clean energy. Hybrid projects, combining wind and solar power, are gaining traction due to their ability to provide a more stable and reliable power supply compared to single-source renewable energy projects. The ISTS connection is vital for efficient power transmission across states.
Source Intelligence
KEY DETAILS
The tender was issued in November 2025. On November 26, 2025, CESC Limited released a Request for Selection inviting bids to develop the 600 MW ISTS-connected wind-solar hybrid projects. "The tender was issued in November 2025. On November 26, 2025, CESC Limited released a Request for Selection inviting bids to develop the 600 MW ISTS-connected wind-solar hybrid projects."
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Capacity
CESC Awards 600 MW ISTS Hybrid Projects to Vismaya Renewables, Purvah Green, Hexa Climate, and Sprng Energy at ₹3.74–₹3.75/kWh
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PPA Details
CESC Awards 600 MW ISTS Hybrid Projects to Vismaya Renewables, Purvah Green, Hexa Climate, and Sprng Energy at ₹3.74–₹3.75/kWh
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Announcement
Friday, February 27, 2026
PARTIES MENTIONED IN SOURCE
C
CESC
buyer
"CESC Awards 600 MW ISTS Hybrid Projects to Vismaya Renewables, Purvah Green, Hexa Climate, and Sprng Energy at ₹3.74–₹3.75/kWh"
V
Vismaya Renewables
developer
"CESC Awards 600 MW ISTS Hybrid Projects to Vismaya Renewables, Purvah Green, Hexa Climate, and Sprng Energy at ₹3.74–₹3.75/kWh"
P
Purvah Green
developer
"CESC Awards 600 MW ISTS Hybrid Projects to Vismaya Renewables, Purvah Green, Hexa Climate, and Sprng Energy at ₹3.74–₹3.75/kWh"
H
Hexa Climate Solutions
developer
"CESC Awards 600 MW ISTS Hybrid Projects to Vismaya Renewables, Purvah Green, Hexa Climate, and Sprng Energy at ₹3.74–₹3.75/kWh"
S
Sprng Energy
developer
"CESC Awards 600 MW ISTS Hybrid Projects to Vismaya Renewables, Purvah Green, Hexa Climate, and Sprng Energy at ₹3.74–₹3.75/kWh"
high quality
Enriched Feb 27, 2026
Market Context
This deal is part of the Hybrid sector in India.
1 of 19 Hybrid deals tracked this month · Updated daily