But back to the topic.
How much would batteries cost that last more than a few minutes?
"1. Capital Costs
The capital cost of a 1 MWh BESS includes the cost of the batteries, PCS, BMS, and other ancillary equipment. The cost of batteries is typically the largest component of the capital cost, accounting for about 50-70% of the total cost. The cost of PCS and BMS accounts for about 20-30% of the total cost, while the cost of ancillary equipment accounts for about 10-20% of the total cost.
The capital cost of a 1 MWh BESS can vary depending on several factors, including the type of batteries used, the performance specifications of the system, and the installation location. Generally, lithium-ion batteries are more expensive than lead-acid batteries, but they offer better performance and a longer lifespan. The cost of a 1 MWh BESS can range from $500,000 to $1.5 million or more, depending on these factors.
2. Operating and Maintenance Costs
The operating and maintenance costs of a 1 MWh BESS include the cost of electricity for charging the batteries, the cost of cooling and other ancillary systems, and the cost of maintenance and repair services. These costs can vary depending on the usage patterns of the system and the local electricity rates.
Generally, the operating and maintenance costs of a 1 MWh BESS are relatively low compared to the capital cost. However, they can still add up over time and should be considered when evaluating the overall cost-effectiveness of the system.
3. Lifetime Costs
The lifetime cost of a 1 MWh BESS includes the capital cost, operating and maintenance costs, and the cost of replacing the batteries over the lifetime of the system. The lifetime of a BESS can vary depending on several factors, including the type of batteries used, the usage patterns, and the maintenance practices. Generally, lithium-ion batteries have a lifespan of about 10-15 years, while lead-acid batteries have a shorter lifespan of about 5-10 years.
When evaluating the lifetime cost of a 1 MWh BESS, it is important to consider the cost of battery replacement and the potential for technology advancements that could reduce the cost of the system over time."
https://www.ritarpower.com/industry_information/1-MWh-Battery-Energy-Storage-Sys...So $500,000 for the cheapest, lead-acid. More for lithium.