Stricter DSM Rules Could Trim Renewable Project Returns by 100 Basis Points

India's renewable energy sector faces potential margin compression as regulators tighten rules governing the Deviation Settlement Mechanism (DSM), which governs penalties for energy forecasting mismatches. Rating agency CRISIL has cautioned that the stricter framework could reduce project Internal Rate of Returns (IRRs) by as much as 100 basis points, fundamentally altering project economics across the sector.

The impact of enhanced DSM compliance requirements will not be uniform across project portfolios. Developers who invest in superior forecasting technologies, demand aggregation capabilities, and energy storage infrastructure will be better positioned to minimise deviations and maintain cash flow resilience, according to CRISIL's assessment. The divergence in outcomes suggests that operational efficiency and technological adoption will increasingly separate performing assets from underperforming ones.

For renewable energy operators, the regulatory shift underscores the growing importance of moving beyond simple generation assets toward integrated solutions that optimise energy delivery. Battery storage systems, advanced weather prediction models, and demand-side management tools are transitioning from competitive advantages to operational necessities under the tightened framework. Projects lacking these capabilities face higher exposure to settlement penalties and reduced profitability.

The stricter DSM rules reflect broader efforts to improve grid stability and renewable energy integration in India's power system. While enhanced forecasting accuracy benefits overall grid reliability, the compliance burden falls directly on project developers, requiring capital allocation toward technology upgrades and infrastructure enhancement during an already challenging financing environment for the sector.