RE-battery storage systems cost-competitive with new coal capacity in Tamil Nadu
According to the report, lithium-ion battery storage systems could also help reduce curtailment of renewable energy
New Delhi : Renewable energy along with battery storage in Tamil Nadu is cost competitive with new coal power plants, according to a recent report.
It added that the cost of energy for a hybrid renewable energy battery storage system in Tamil Nadu would be Rs 4.97 per kilowatt hour (kWh) in 2021. The report studied a hypothetical RE-storage system for the analysis.
“The levelized cost of energy for a hypothetical hybrid renewable battery storage system for the state would be Rs 4.97 per kWh in 2021, which would falled to Rs 3.4 per kWh by 2030,” said the economic viability analysis by Climate Trends and JMK Research.
In comparison, the cost of electricity produced from new coal power plants in Tamil Nadu is between Rs 4.5 per kWh to Rs 6 kWh, it added.
According to the report, lithium-ion battery storage systems could also help reduce curtailment of renewable energy.
Close to 50 per cent of solar power in Tamil Nadu was curtailed since the lockdown in March 2020. Similarly, its curtailment of wind power in 2019 went up to 3.52 hours per day from 1.87 hours per day in 2018.
“The cost of hybrid renewable battery storage system is at parity with new coal power plants in Tamil Nadu. Moreover, in 10 years time, incremental capacity addition would further drive down the cost by over 31 per cent,” said the report.
Jyoti Gulia, founder, JMK Research, said the system demonstrated that renewable energy coupled with battery storage was a technically and financially viable option to build new coal capacity and would be a dispatchable source of power that addresses the grid integration of intermittent power sources.
Methodology:
According to the report, the hypothetical hybrid system caters to one gigawatt (GW) of solar and wind capacity in 2021 with two hours of battery back-up.
It tracks the system from an initial capacity of 800 MW of solar and 200 MW of wind power along with 500 MWh of storage, that would cater to Tami Nadu’s average annual power demand for two hours per day from 2021-23. Its capacity is augmented to three hours of daily back-up for 2024-2026, and then four hours per day for 2027-2030.
It further added that if this hypothetical, solar-wind-powered storage system were to wheel all of its energy to Delhi, even after accounting for inter-state transmission charges it could cover 100 per cent of Delhi’s average yearly electricity demand by 2030 at Rs 4.4 per kWh.
Source : economictimes
