Billion Watts Technologies, the solar and energy storage subsidiary of Taiwan’s Billion Electric, has completed a 64MW/262.43MWh battery energy storage system (BESS) in central Taiwan.
The project, which has been jointly developed with Shinshin Credit Corporation, a Taiwanese financial services company, is located within an industrial zone and entered commercial operations in early March.
Billion Watts confirmed in a statement that the BESS will be involved in energy shifting and frequency regulation, participating in Taiwan Power Company’s E-dReg (Enhanced Dynamic Regulation) ancillary services market.
This becomes the latest large-scale BESS to be commissioned in Taiwan. Indeed, last year, electric vehicle (EV) and energy storage technology firm NHOA commissioned a 120MWh BESS in Taiwan for its parent company, Taiwan Cement Corporation (TCC).
Try Premium for just $1
- Full premium access for the first month at only $1
- Converts to an annual rate after 30 days unless cancelled
- Cancel anytime during the trial period
Premium Benefits
- Expert industry analysis and interviews
- Digital access to PV Tech Power journal
- Exclusive event discounts
Or get the full Premium subscription right away
Or continue reading this article for free
It followed the commissioning of a 311MWh system by system integrator NHOA in December 2023, the largest in Taiwan, which was designed explicitly for the E-dReg ancillary service market, as the firm said.
Much like the new Billion Watts BESS, this was also for an industrial site of parent company TCC, which acquired a majority stake in NHOA from Italian utility Engie in 2021, with NHOA called Engie EPS before that.
TCC chairman Nelson Chang said in 2022 that Taiwan will need 90GW of energy storage by 2030 to integrate new renewable energy capacity. Several energy storage technology providers, such as Fluence, flow battery manufacturer Invinity and NHOA, are active in the market.
It is worth noting that the Taiwan energy storage market is set to become a focus for Billion Electric with plans to develop 1.2GWh local battery system production capacity. The energy storage system integrator subsidiary Billion Watts has an in-house energy management system (EMS) platform, which the company said leverages AI-driven analytics and predictive modelling.
Billion Watts eyes Japan and Australia energy storage markets
Alongside the confirmation that its 262.43MWh BESS has been successfully commissioned, the organisation confirmed it is set to expand its operations into Japan and Australia.
In Japan, the company aims to establish high-voltage storage stations and expand its commercial and industrial (C&I) energy storage business to deploy 1,000 storage systems within the next three years.
Japan is targeting a 36-38% share of renewable energy in its generation mix by 2030 and carbon neutrality by 2050. To support this target, the government identified support for and promotion of energy storage as a key pillar of the Green Transformation Act announced in 2021.
This was followed by the Ministry of Trade, Energy and Industry (METI) publishing a national battery storage strategy a year later, which highlighted the important roles BESS could play in decarbonisation, enhancing the integration of renewables and adding stability to the grid.
Meanwhile, Billion Watts is engaging in the National Electricity Market (NEM) in Australia and aims to acquire ten sub-5MW sites by 2026. The company is also investigating investments in larger projects exceeding 50MW to take advantage of price volatility driven by renewable energy.
The energy storage market in Australia continues to gain traction, with several notable trends emerging in recent months. Ahead of the Energy Storage Summit Australia 2025, which will take place next week (18-19 March) in Sydney, Energy-Storage.news looked at some of the key debates set to take centre stage at the event.
