Mandatory Battery Energy Storage Systems Renewable Projects

Why in news

  • India proposed draft norms requiring mandatory energy storage integration for all new government-tendered solar and onshore wind projects starting July 2027.

Key terms

BESS

Battery Energy Storage System used to store excess renewable energy for dispatch during peak hours.

Grid-Forming Inverters

Power electronic devices that independently establish grid voltage and frequency reference without relying on external grid signals.

What are the proposed mandates?

  • New solar and onshore wind projects commissioned after July 1, 2027, must include a minimum 2-hour battery storage equivalent to 10% of installed capacity.
  • The storage duration requirement escalates to 4 hours from July 1, 2029.
  • Mandates grid-forming inverters for utility-scale variable renewable plants to strengthen grid stability.

Why it matters

  • Addresses intermittency issues associated with solar and wind power generation.
  • Enhances grid frequency regulation and supports peak-load demand management.

Prelims facts

  • Grid-forming inverters generate voltage source characteristics necessary for grid stability in high-RE grids.

Mains discussion

  • Importance of energy storage integration in achieving India's 500 GW non-fossil capacity target by 2030.

Source: Economic Times Industry

Same topic · past papers

UPSC has asked this before

These previous-year questions sit on the same topic. Open one to practise the earlier ask.

  1. 2025 · Q99 · UPPGS

    Given below are two statements, one is labelled as Assertion (A) : and the other as Reason (R). Assertion (A): The concept of National Integration involves political, economic, social, cultural and psychological dimensions and inter-relation between them. Reason (R): The National Integration Council was constituted in 1961 on the principle of 'Unity in Diversity'.

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