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Rising Module Prices May lower Returns For 12 GW Solar Projects


Rising module prices may diminish returns for 12 GW of bid out solar projects by ~200 bps and inflate tariffs of future bids by 10-15 paise per unit, CRISIL has stated.


Solar modules form over 50% of the total project cost and bulk of them are imported. Thus material variations in their price and exchange rates from expectations at the time of bidding can pose viability risks on the projects.

Developers typically buy the modules 9-12 months after they win the auction. This wide gap exposes projects to risk of fluctuations in solar panel prices and currency exchange rates. More so because these variables remain unhedged and are also not a pass-through as per agreements.

As per CRISIL Ratings' estimates, 12 GW of projects were bid at low tariffs of less than Rs 2.5 per unit since March 2020. These projects had factored in the price trend of solar modules which had fallen by more than 10% compounded on-year over the 5 year period ending March 2020.

Rising Module Prices May lower Returns For 12 GW Solar Projects

However as these projects are nearing the module procurement phase, a reverse price trend is visible with module prices spiking to USD 0.24/watt in June 2021 - a good 10% increase since January 2021. Remaining components of project cost being land and other electrical equipment, have been fairly stable.


Says Ankit Hakhu, Director, CRISIL Ratings, "Although some support has come from a stronger rupee, assuming no further strengthening of rupee against dollar, at USD 0.25 per watt, landed cost of solar modules will be higher by over 10% in rupee terms, and project costs by 6-7% in this calendar year. This will ultimately squeeze equity returns by 200 bps, down from a typical range of 10-12% for bid out solar projects having lower tariffs."

Module price rise is driven by an increase in cost of critical raw materials such as polysilicon, aluminum and copper, together forming more than 50% of the module cost. While prices for these commodities are cyclical, presently they are showing firmness (having increased by 2-25% since January 2021) given the strong demand of these commodities from other industries (such as auto, construction and electronics).

Says Varun Marwaha, Associate Director, CRISIL Ratings, "Further, if the module prices remain high at over USD 0.25 per watt, the future solar bids are also likely to become relatively expensive compared to the low tariffs of around Rs 2 per unit seen around January 2021. Tariffs could jump by Rs 10 - 15 paise per unit to factor higher module costs and to maintain returns of 10-12%."

Read more about: solar power crisil ratings
Story first published: Friday, June 25, 2021, 14:37 [IST]
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