Discuss how state-level policies complement central schemes such as PM Surya Ghar in scaling up decentralised renewable energy. What implementation bottlenecks persist?

Decentralised renewable energy (DRE) means rooftop solar and distributed storage. Its growth is anchored in central schemes such as PM Surya Ghar: Muft Bijli Yojana (PMSG), which has an outlay of ₹75,021 crore and targets 1 crore households [1]. Electricity is a Concurrent List subject and DISCOMs are state entities. Final outcomes therefore depend on how states build on the central design.

How state policies complement central schemes

• Financial top-up: PMSG caps central subsidy at ₹78,000 for 3 kW [1]. Tamil Nadu's combined support of ₹1,00,000 implies a state top-up of ₹22,000 [2].
• Last-mile delivery: State bodies such as TNGECL and the DISCOMs handle inspection, net-metering and grid connection, which a central portal cannot do [2].
• Filling gaps — storage: Tamil Nadu's forthcoming BESS policy and portal add storage alongside rooftop solar [2]. They build on the Centre's VGF scheme, under which at least 85% of the power must first be offered to DISCOMs [3].
• Competitive federalism: Gujarat alone accounted for nearly two-fifths of PMSG's first 10 lakh installations [4]. This shows that proactive states drive uptake.

Persisting implementation bottlenecks

• Slow national rollout: PMSG had about 16 lakh installations by June 2025, only 16% of its target. The Standing Committee on Energy mainly blamed low awareness [5].
• Approval backlogs: In Tamil Nadu only 1,500 of ~20,000 applications have been cleared [2]. Here the queue is at the approval desk, not the awareness stage.
• DISCOM reluctance: DISCOMs delay PPAs and miss their Renewable Consumption Obligations [5]. This weakens the buyer side of storage projects.
• Uneven state capacity: A few states account for most installations [4], which shows wide differences in administrative capacity.
• Import dependence: India still imports polysilicon, ingots and wafers. The Committee recommended a PLI scheme for them [5].
• Ambitious targets: Tamil Nadu aims for 1 lakh new plants by March 2027, roughly equal to its entire past installed base [2].

State policies turn central funds into installations on the ground through top-ups, storage frameworks and local agencies. Approval capacity, DISCOM behaviour and supply chains remain the weak links. Time-bound single-window portals, RCO enforcement with penalties as the Committee urged [5], and domestic manufacturing can make cooperative federalism deliver. This would advance SDG 7 and India's clean-energy transition.