Battery is coming to ace the generator
High voltage batteries are coming as an alternative to standby generators to ensure uninterrupted power. This method is being used in many countries; Bangladesh is also going to implement it on a small scale in pilot form by the electricity department.
Each battery has more capacity than two-four quick rental power plants. Each unit of lithium ion batteries is available up to more than 100 MW. Which are equal in size to each container. Recharge through high voltage or medium voltage lines. Again, if the power supply is interrupted for any reason, the nano will activate in less than a second. These batteries are capable of providing uninterrupted power supply for 4 to 5 hours. It is considered helpful in industries, markets and apartments. Currently diesel and gas generators are being used in these places. which requires a large amount of fuel. Again the issue of environmental pollution is also involved.
India plans to install 200 GWh by 2040. NTPC and Tata Group have installed 10 MW batteries in their facilities. Bangladesh has huge variations in electricity demand over time and season. The power division is struggling to handle these ups and downs. A specialized peaking power plant has to be kept in the system to meet the increased demand in the evening. Battery technology is expected to be very fruitful. Installation of batteries will eliminate the need for peaking power plants. If such a storage system can be built in the region, it will be able to easily meet the increased demand in the evening and night. At the same time, standard power supply will be possible by reducing the fluctuation of electricity voltage. Many believe that this can be of great help to the overall power sector.
The battery will be fully charged in the early morning when the demand is very low, and will provide power in the evening or at other times when there is load shedding. Power Cell believes that it will also help to keep the system operational when large coal-based power plants including Rooppur nuclear power plant come into production.
Engineer Saleh Ibn Sharif, Assistant Director (Performance Monitoring) of Power Cell, a development and research institute of the Electricity Department, told Barta24.com that this method is being used in many countries including India. India has undertaken a grand scheme, we want to initially implement it in pilot form and verify the results. Plans are under way to test fit a garment. The garment has an approved demand of one and a half megawatts. But the actual demand is 485 kWh. We are preparing to install 2 megawatt hour batteries.
In response to a question, he said, the cost of a battery of one megawatt capacity will be around Taka 3 crore. They have a life time of 10 years. It will be cost effective than using diesel generators. They will recharge off-peak when power demand is low. By recharging at that time, the government will not have to keep the peaking power plant on standby. This will reduce the average production cost of electricity.
He further said that setting up a power plant is time-consuming, but these batteries can be purchased and installed on a turn-key basis to run the power system. Installation is possible within 1 month if there is a power shortage in any region. Our Mymensingh zone and Rangpur are experiencing power shortages many times. Electricity has to be taken from Chattogram or Barishal zone to deal with the shortage, which is increasing system losses. If batteries are installed at substations, there will be reserves. Uninterrupted power will be ensured during peak times. These batteries are becoming modern day by day considering many advantages for the overall system.
The major complication of Bangladesh's power sector is the huge difference in demand over time. During the irrigation season, the demand exceeds 16,000 MW, and in winter, the demand falls below 10,000 MW. Production capacity should be kept ready with reserve margin taking into account the maximum demand. Most of which remain unused. In addition, the overall cost of production is increasing while charging. The government, however, plans to import power from Nepal as well as export it during winter. Hydroelectricity is the main source of electricity in Nepal, production decreases when mountain river water decreases in winter when they have to deal with the increased demand to use room heaters. At that time, power plants sit idle in Bangladesh.