⚡ Quick Read
- What happened: Southern Railway has invited bids for 40 MW of solar capacity across Chennai, Salem, and Tiruchirappalli divisions with an estimated project cost of ₹5.21 billion.
- Why it matters: This large-scale tender provides a significant opportunity for EPC contractors to secure long-term government contracts involving design, commissioning, and 25-year O&M services.
- Watch: The bid submission deadline is set for May 4, 2026, with strict eligibility criteria regarding prior government project experience and financial turnover.
Background and Context
As part of the Indian Railways’ broader objective to achieve net-zero carbon emissions and reduce operational energy costs, Southern Railway has launched a major initiative to integrate solar power into its infrastructure. This latest tender for 40 MW of solar capacity targets three key divisions in Tamil Nadu: Chennai, Salem, and Tiruchirappalli. This move follows a series of smaller rooftop solar tenders issued by various railway zones across India, signaling a strategic shift toward larger, utility-scale solar integration within railway land and facilities.
Key Details
The project, estimated at ₹5.21 billion (~$55.1 million), encompasses the full lifecycle of the solar assets. The scope of work mandates the design, engineering, procurement, civil works, installation, testing, and commissioning of the solar plants. Furthermore, the successful bidder will be tasked with the comprehensive operation and maintenance (O&M) of the projects, including associated transmission systems and substation bays, for a period of 25 years.
Financial and technical requirements are stringent. Bidders must demonstrate an average annual turnover of at least ₹15 million and maintain a positive net worth over the last three financial years. Technically, the bidder must have successfully executed at least 8 MW of solar projects for government entities, PSUs, or publicly listed companies. The tender also outlines specific liquidated damages for power generation shortfalls, calculated at a rate derived from ₹2.65 per kWh.
What This Means for EPCs and Developers
For EPC contractors, this tender represents a stable, long-term revenue stream backed by a government entity. The requirement for 25-year O&M ensures that contractors with strong asset management capabilities will have an advantage. Developers should note that the project involves not just installation but also the integration with DISCOM or intrastate transmission systems, requiring robust technical expertise in grid connectivity and compliance with regulatory standards for power purchase agreements.
What Happens Next
Interested parties must submit their bids by May 4, 2026. The tender requires a tender document fee of ₹34,810 and an earnest money deposit (EMD) of ₹42.72 million. Additionally, selected bidders will be required to furnish a performance bank guarantee of ₹1.60 million per MW. Given the scale and the 25-year commitment, stakeholders should begin preparing their technical credentials and financial documentation immediately to meet the May deadline.
📊 Key Data
Southern Railway has issued a competitive tender for 40 MW of solar capacity across three Tamil Nadu divisions. The project requires comprehensive EPC and long-term O&M services.
| Issuing Authority | Southern Railway |
| Tender Reference | Not specified |
| Capacity/Scope | 40 MW (Design, EPC, O&M) |
| Technology Type | Solar PV |
| Project Location | Chennai, Salem, and Tiruchirappalli, Tamil Nadu |
| Estimated Value | ₹5.21 billion (~$55.1 million) |
| EMD/Bid Security | ₹42.72 million (~$452,000) |
| Bid Deadline | May 4, 2026 |
| Pre-bid Meeting | Not specified |
| Project Duration | 25 years (O&M) |
| Tariff Structure | Not specified |
| Eligibility Networth | Positive net worth (last 3 years) |
| Eligibility Experience | 8 MW solar projects for Govt/PSU/Listed entities |
| Special Conditions | Liquidated damages for generation shortfall |
| Go/No-Go Signal | 🟢 |
