India Stationary Energy Storage Market set to double its annual capacity additions before 2027

India Energy Storage Alliance (IESA) in its flagship report the 6th edition of “Stationary Energy Storage Market Overview Report” forecasts the India Stationary Energy Storage Market to double its annual capacity additions before 2027.

IESA has estimated the stationary energy storage market potential in India to be around 230 GWh during the period 2020-2027. The share of grid scale applications contribution is expected to be 15%, with behind-the-meter applications making up the rest. In grid application, integration takes up majority of this share, split between solar and wind projects. CEA also projects requirement of 136 GWh of storage in the grid at various levels by 2030.

The market overview report estimates the energy storage market in India to be US $2.1 billion in 2019 and forecasts a CAGR of 8% by 2027. The report has taken 2019 as the base year for the estimation and the forecast period considered for projections is 2020-27. In 2019, the market size shrunk to 21 GWh from 24GWh last year, primarily due to lower sales in the larger markets such as telecom and inverter batteries in 2018.

The report projections consist of base case, worst case, and best-case scenarios, wherein the base case assumes a Business as Usual (BAU) scenario with support from Ministry of New & (MNRE) and other government institutions. The best case assumes more supportive policies, higher penetration rate of storage in grid scale projects, storage in providing ancillary services to grid, in distribution grid, and presently, unconventional Behind-the-meter applications such as diesel optimization, rooftop etc., to pick up at a CAGR of 14%.

The worst-case scenario assumes a low growth of 2% in the market owing to the impact of COVID-19 pandemic and other reasons for delays in projects.

For the forecasted period, the top growing markets for ESS are integration into the grid, diesel optimization, solar rooftop, and distribution utility scales storage.

integration into the grid is slated to grow at CAGR of 32% by 2027 due to the focus on solar-wind hybrid tenders by Corporation of India () and other government agencies, due to high renewable target of 450 GW by 2030.

Diesel optimization is a key sector on account of for diesel genset usage for more than 3-4 hours a day and is slated to grow at CAGR of 59% in short term till 2023, with a slower growth in long term at 30% till 2030 accounting for a more reliable national grid which may leave less scope for growth of backup market.

For the rooftop solar market, a dip in GST from 28% to 5% has been a driver for the market, with analyses additionally showing that for solar resource-rich states like Maharashtra, Tamil Nadu, Karnataka, West Bengal, Assam, blended tariff  of rooftop solar with 50% could meet grid parity by end of 2023.

In the mid- to long-term, COVID-19 could negatively impact market growth, but towards 2027 the market is likely to be a strong supporter of energy storage technologies.

Another top market for energy storage is Distribution Utility market, with top private DISCOMs such as BSES and TPDDL in Delhi already in different stages of Battery Energy (BESS) installations.

The strain on DISCOM’s due to a higher penetration of solar rooftop, EV , and ever-increasing C&I loads can be supported by energy storage technologies. This fact is likely to become more apparent in the long term with the market size potentially increasing to about 6 GWh in 2027.

The COVID 19 impact although will be visible on the rooftop solar, , and diesel optimization markets, the markets are likely to recover after 2021, with all estimates for 2027 made in the report still holding good.

Other markets such as telecom markets and UPS will have a medium impact due to COVID 19, owing to an increased use of electronic communication devices such as smart phones, laptops, and change in lifestyle owing to remote work.

The most popular battery technologies used for energy storage are flooded lead-acid batteries, valve regulated lead acid batteries (VRLA), and other technologies such as flow batteries, thermal batteries etc.

IESA  in the report said that “Our analyses show that the contribution of lead-acid batteries will reduce over the forecasted period with flooded lead-acid battery share going from 52% to 19%, and for valve-regulated lead-acid batteries reducing from 44% to 31%. At the same time, the penetration of is projected to increase rapidly from 4% in 2019 to 45% in 2027 primarily due to the decreasing prices of lithium-ion battery systems. The share of other battery technologies, although still small, could also increase from less than 1% in 2019 to 5% in 2027.”

The latest edition of the report provides an analysis of the market potential and market size of Stationary Energy Storage in applications such as renewable energy integration into the grid, Transmission & Distribution(T&D) deferral, ancillary services as well as in the Behind-the-Meter (BTM) applications from 2020 to 2027. In addition, the report covers top markets for this year. BTM applications include solar rooftop, , diesel usage optimization, UPS, telecom, rural electrification, and thermal energy storage applications.

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