The know-how of using renewable energy for battery storage

Kunwer Sachdev’s TOI Blogs essay: if India wants 50% of its electricity from renewables by 2030, the country’s real bottleneck is not panels or turbines — it is battery storage.

Kunwer Sachdev’s Times of India Blogs essay opens on a policy commitment — India’s target of 50% of electricity from renewables by 2030, and the wider Paris Agreement push toward net-zero by 2050. His argument: the transition is only as fast as the storage layer under it. Panels and turbines get the headlines; batteries decide whether any of it actually works.

Why storage is the real bottleneck

Renewable generation is inherently variable — the sun sets, the wind stops, but demand does not. Without dispatchable storage, every grid needs a fossil-fuel plant standing by to fill the gaps. That is why energy storage, not generation, is the piece of the transition that has to move fastest.

Lithium as the workhorse, and what comes next

Sachdev walks TOI readers through why lithium-ion is the current default — high energy density, long cycle life, low self-discharge, recyclable metals — and previews the next chemistries in serious development: solid-state, lithium-sulfur, and safer LFP variants for stationary storage. He argues Indian manufacturers can lead the LFP layer if they invest in engineering now.

“Accelerating the transition from fossil fuels to renewable energy requires a solid technological infrastructure — and the major challenge facing this shift is energy storage.”— Kunwer Sachdev, Times of India Blogs • 6 August 2022

From policy target to practical fix

The essay closes on what a serious storage strategy looks like from the ground up: honest cell-level diagnostics, real safety testing (LFP over NMC where fires are a risk), retrofit paths so that installed inverters and rooftop solar can add storage without a rip-and-replace, and manufacturing incentives that reward Indian firms actually building cells, not just importing them.