Solar and wind energy, which emerged as a ray of hope globally, have brought some challenges along with concerns arising from the increasing pollution caused by traditional coal power plants.
Experts believe that we are not able to take full advantage of this type of renewable energy storage and lack of a clear policy to use it wisely.
In a webinar organized by Climate Trends, WRI-India, Auroville Consulting and JMK Research and Analysis, titled ‘Role of Energy Storage in Tamil Nadu Energy Sector’, experts said that India has certainly made significant progress in the field of renewable energy but this type of It is not getting full benefit due to lack of clear policies to encourage consumers for energy storage, battery storage of renewable energy and use it at the appropriate time. It is strange that this work has not been done so far, despite no significant obstruction. Government should pay special attention in this direction.
Bharat Jayaraj of WRI-India said that Tamil Nadu has a full supply of renewable energy every 1 day to 1 day. But the various conditions of renewable energy production bring with it some challenges. Many times states have to cut their renewable energy production due to lack of battery storage facilities. If we do not take the subject of storage very seriously, then we may have problems.
In a presentation, Sandhya Raghavan of WRI said that with lithium-ion batteries, we can easily meet the challenges of forced reductions in renewable energy production. We can learn a lot from other countries as well. We have to make a clear strategy for storage in the future.
Sandhya pointed out that challenges are arising due to limited availability of grids, reduction in renewable energy generation and limited availability of flexible resources for grid balancing, hence the need to anticipate energy storage related needs in advance. needed.
Referring to the main findings of his study, he said that with the increasing share of renewable energy in the grid, there is a need to increase the storage capacity of the additional renewable energy produced. The Battery Energy Storage System (BESS) cuts costs at the system level. In addition, this reduces the waste of renewable energy produced. The government should prepare a plan based on a long-term integrated strategy.
Jyoti Gulia of JMK Research and Analysts advocating hybrid storage system said that the Hybrid RE Plus storage system would prove to be a very important solution for clean and pure energy capacity addition in the country. It is a complete solution to the current diverse needs. Tamil Nadu, one of the country’s leading states in terms of setting up VREs, is in a better position to assess the feasibility of a hybrid RE Plus storage model.
He said that hybrid RE plus storage systems are a better option than the electricity rates of new coal-fired power stations. In view of the current increase in fuel prices and strict orders related to pollution control, all coal power stations will have to install pollution control technology.
Hari Subish Kumar of Auroville Consulting, referring to the availability and challenges of battery storage related systems in the country, said that India is largely dependent on imports for the availability of battery systems at the moment and the import tax has also been increased by 2.5 percent. . Also, according to the current rule, solar energy capacity cannot be stored more than 100% of the allocated load. Because of this also we are not able to make optimum use of renewable energy produced here.
He recommended adding battery storage facility in government schemes and said that hybrid inverters should also be added to existing and future rooftop solar related schemes by the central government. In addition to this, future-looking rules should be made for better use of grid services.
Senior journalist Ramesh, who is conducting the webinar, said that in states like Tamil Nadu, which are rich in renewable energy, power storage facility is not only necessary but it has become mandatory. This storage has become more practical than before. I wonder why this work has not been done yet. Probably due to lack of awareness. That people do not know that storage has become very cheap and all its obstacles have almost been overcome.
Explaining a different aspect of the battery storage scenario in the country, Shankar Narayan of the Tamil Nadu Energy Development Agency (TEDA) said, “I do not believe that the urban population has more storage system problems.” I think the battery of the inverter kept in every consumer’s house is sufficient by itself. Of the 25 million consumers, one crore have a battery storage system.
He said that the entire market for battery storage is going to change in the coming time. We should create such a mood that we should not charge our electric vehicle from evening till nine in the night. We can use the battery feature wisely in two-wheelers and four-wheelers. I recommend all think tanks to work in this direction. This situation is for the whole country. We cannot change anything overnight. We can do this in a phased manner. We all should use battery storage wisely and should not disturb the power supply in peak hours.
Ashok Kumar, President of the Tamil Nadu Solar Energy Developers Association, while referring to the government’s attitude towards storage and storage of renewable energy production in Tamil Nadu, said that there is always a question in the minds of consumers as to what they will do by storing renewable energy. If we consider this question of the consumer, the truth in Tamil Nadu is that we have come up with a draft policy that whatever electricity will be generated will be spent during the day. This will not provide reasonable incentives to renewable energy producers.
He said, “I believe that this project requires cooperation from the government. People should be made aware of what they will get by adopting battery storage for renewable energy storage. The truth is that there is a kind of communication gap between the government and renewable energy producers. We can meet the energy requirements of our peak hours with renewable energy. We have urged PNRC and TEDA to use renewable energy in peak hours as well.
Orville Consulting co-founder Twain Van Megen said that the government should assure consumers to buy renewable energy at a better price. He said, “Everyone has an inverter in their house. It should instill confidence among consumers that if you give solar energy to us, we will give you better reward for it. There is no assurance of such power purchase from governments nor is there any such policy. Due to this also, people store solar energy produced for their domestic use rather than store it on a large scale. In peak hours, financial incentives should be given to use store energy instead of grid.
Aarti Khosla, director of Climate Trends, said that Tamil Nadu is among the leading states in India in terms of renewable energy generation, but it cuts off a large percentage of this power due to several reasons. These reasons also include concerns related to excessive power generation and grid imbalance. Tamil Nadu cut solar power by 50.8% in March 2020 when the lockdown caused by the global pandemic Kovid-19 was declared. At the same time, its annual reduction in air power reached 3.52 hours per day in the year 2019, which was 1.87 hours per day in the year 2018.
He said that although the battery-based energy storage system can solve this problem, renewable energy producers can be saved from harm by collecting and releasing solar and wind energy.
Shyam Raghupati, CEO, Electric Mobility Division at Rajesh Exports Ltd., said that power demand in India has been steadily growing at a remarkable pace and as per initial estimates it will grow at a CAGR rate of 6% from 1500 terawatt per hour in 2020 to 2030. 2700 terawatt hourly. However, in view of the long-term impact on the economy due to Kovid-19, the demand for electricity is expected to decrease by 7 to 17% as compared to earlier.
Despite this, he said, in order to meet the increasing demand for electricity, it is necessary that India continues on its path of renewable energy transformation and continues its meaningful contribution to global efforts on climate protection. Nearly 75% of India’s electricity is still generated from coal and gas-fired power plants. Due to these, a large amount of particulate matter pollution is generated. But given the continuous increase in the prices of electricity from fossil fuel based power stations, it is expected that by 2050 there will be a steady decline in the demand for electricity.
A lithium ion-based battery energy storage system (BESS) to collect Tamil Nadu’s solar and wind energy has been designed to idealize the contribution to meet the state’s annual electricity demand. The capacity and discharge time of this system increased in a phased manner over the course of 10 years.
India’s resolve to set up 175 GW of renewable energy capacity by 2022 and 450 GW by 2030 has sustained a period of revolution in the field of pollution free electricity. Renewable energy capacity has increased by six times in 2019-20 as compared to 2009-10 and the rates of renewable energy are less than Rs 3 per kWh today compared to 15 to ₹ 18 per kWh in 2009-10. .
Although there has been a significant increase in the share of variable renewable energy (VRE) in the total power generation mix, there have been some limitations in terms of collecting this power. The challenge of lack of flexibility in the energy system is increasing due to the lack of continuity in wind and solar power generation. Especially in states where the share of renewable energy generation capacity is high.
Electricity generated from the RA Plus storage system can meet about 29% of Tamil Nadu’s annual average electricity demand by 2030 and 100% of Delhi’s energy demand by the year 2030. In view of this, the hybrid RE plus storage system is relatively economical, as it is not only a clean and strong source of power supply, but also provides electricity at a low price.
Tamil Nadu is among the most progressive and competitive states of India in terms of development and diversification of the energy sector. This state has the highest number of renewable energy units installed. Out of the state’s total power generation capacity of 35 GW, the share of renewable energy is 14 GW. The state needs power ranging from 13500 to 16000 MW, with more than 15% supplied from renewable energy.
The convenience of storing renewable energy is the basis of the success of this entire system. The amount of operational emissions in generating renewable energy is almost non-existent, due to which it is completely clean energy compared to biofuel based electricity, but it has intermittent generation of electricity, which is a major hindrance and has there is a need to bring balance. Renewable energy requires storage. If this is not done, it will not be able to compete with the electricity produced from fossil fuels for a long time. This is the reason why renewable energy has not been able to match the electricity generated from coal or gas to meet the sudden increase in demand for electricity.