Battery storage cabin supply in Mongolia

Li-ion batteries are considered the most beneficial choice in terms of both technology and economy for utility-scale grid energy storage. They are often selected for grid stabilization purposes because they provide ancillary services. The characteristics of the Li-ion technology have made it well-suited

14 N-1 standard criterion is a design philosophy to enable the stable power supply in case of loss of a single power facility, such as a transformer and a transmission line. In conclusion, the BESS capacity was 125 MW/160 MWh.15 Table 4 summarizes the major applications of the BESS in Mongolia. Load shifting.

Since Mongolia's energy sector reform in 2001, the CES has been unbundled into generation, transmission, and distribution subsectors; and the government has introduced a single-buyer model for market-oriented sector operations. The Law on Investment was amended in 2015 to support private sector investment in energy infrastructure.

In the current market, lithium-ion (Li-ion) batteries are the dominant technology for utility-scale grid storage, while other technologies, such as NaS batteries and redox flow batteries, also have proven track records in the market.

As one of the measures to accomplish this, Mongolia's BESS project plans include the development of an ancillary-service pricing policy and guidelines. The policy and guidelines will not only help the BESS to become financially viable, but it will also remove barriers against private sector investment in future BESS projects.

While NaS was the best for large-scale storage in 2017 (50 MW), the largest installed BESS in operation in 2020 was at the Li-ion based Hornsdale plant in Australia (100 MW).18 As also already noted, the borderline between battery technologies is changing.