Bhutan outdoor power supply BESS price

It is nonetheless still eye-opening to note just how big those differences in cost are. The average for a turnkey system in China including 1-hour, 2-hour and 4-hour duration BESS was just US$101/kWh. In the US, the average was US$236/kWh and in Europe US$275/kWh, more than double China's average cost.

BESS stands for Battery Energy Storage Systems, which store energy generated from renewable sources like solar or wind. The stored energy can then be used when demand is high, ensuring a stable and reliable energy supply.

Factoring in these costs from the beginning ensures there are no unexpected expenses when the battery reaches the end of its useful life. To better understand BESS costs, it's useful to look at the cost per kilowatt-hour (kWh) stored. As of recent data, the average cost of a BESS is approximately $400-$600 per kWh. Here's a simple breakdown:

The cost of BESS has fallen significantly over the past decade, with more precipitous drops in recent years: This is nearly a 70% reduction in three years, owing to falling battery pack prices (now as low as $60-70/kWh in China), increased deployment, and improved efficiency.

Downstream, as reported by Energy-Storage.news, recent tenders in China have been held in which winning bids for BESS projects as low as US$66/kWh were entered, which Kikuma says were in broadly in line with BNEF's numbers.