The Solar Energy Corporation of India recently awarded a 1GW round-the-clock renewable energy tender at ₹5.25 per unit. While this boosts India’s green energy goals, the tariff faces pressure from expiring transmission waivers and high storage costs. Investors may watch how power companies balance these rising costs with profit margins in future bids.
The Solar Energy Corporation of India (SECI) recently completed a tender for 1GW of round-the-clock renewable energy at a tariff of ₹5.25 per unit. This model aims to provide stable electricity throughout the day, helping to reduce reliance on coal-fired power and volatile global coal prices. While this development is a significant step toward energy security, the low tariff level faces structural challenges that could affect the long-term profitability of such projects.
The Impact of Expiring Subsidies
A key factor keeping renewable energy tariffs competitive has been the waiver on interstate transmission charges. This government incentive helps companies move power across state lines without extra costs. However, this waiver is set to phase out over the next 24 months. Industry analysts estimate that the removal of this benefit could add at least 50 paise per unit to the cost of electricity. For developers who have bid aggressively at low tariffs, the expiry of these waivers may tighten profit margins unless they can optimize their operational costs.
Storage and Supply Chain Hurdles
To provide round-the-clock power, companies cannot rely solely on solar or wind, as these sources are intermittent. They must integrate large-scale battery storage to supply electricity when sunlight or wind is unavailable. This requirement creates two main problems. First, the cost of high-capacity battery technology remains steep, and land acquisition for these setups is both difficult and expensive. Second, the renewable sector continues to rely on external supply chains, particularly for solar modules and components. Changes in global trade policy or sudden shifts in manufacturing capacity can lead to price swings, making it harder for companies to maintain stable project costs.
What Investors Should Track
For investors, the primary concern is whether power companies can maintain healthy margins while bidding for these complex projects. While winning tenders is positive for growth, the financial reality of executing these projects is becoming more challenging. The shift toward round-the-clock supply requires deeper capital spending on storage infrastructure and better technology. Investors may track how companies manage their debt levels and whether they can secure better returns on equity despite the rising cost of operations. Moving forward, the industry’s ability to move away from heavy dependence on imported components and toward domestic innovation will be a crucial factor in sustaining competitive tariffs and consistent profit margins.