WHATS Seminar, Vol. 266

Trends and Outlook for the Battery Energy Storage System (BESS) Business
 — ​Current Business Models Using Grid-Scale and Renewable Energy Co-Located BESS, and the Fundamental Value of BESS Facilities as Power Infrastructure

Wednesday, September 16, 2026 | 2:30 PM–3:30 PM JST | Online

[Seminar Overview]

• 2:30 PM – 3:20 PM

As renewable energy deployment expands and thermal power generation declines, the use of battery energy storage systems (BESS) is rapidly gaining attention in Japan. Grid-scale BESS and BESS co-located with renewable energy facilities can provide balancing capacity for the power grid and absorb surplus electricity. Following the full opening of Japan’s balancing market in fiscal 2024, the domestic BESS business has entered a phase of full-scale development.

At present, high returns are anticipated because prices for primary balancing capacity have remained at the market price cap. At the same time, however, the business environment is changing rapidly due to factors such as revisions to the price cap and increasingly lengthy grid connection procedures.

This seminar will explain current trends, the outlook, and key challenges in the battery storage facility business.

Topics:

1. Business models for grid-scale and renewable energy co-located BESS, and an overview of Japan’s electricity markets
2. Market size, growth drivers, and barriers in the BESS business
3. Key topics shaping the BESS market: revisions to the balancing market price cap and measures to expedite grid connection
4. Outlook and challenges for the BESS business

 

Speaker: Tatsuya Kamiyama, Senior Researcher
 Consumer, Environment & Service Industry, Yano Research Institute Ltd.

• 3:20 PM – 3:30 PM

Q&A Session

[Seminar Outline]

Date and Time: 2:30PM –3:30 PM (JST), Wednesday, September 16, 2026

Venue: Online Live Streaming

The seminar will be live-streamed through "Deliveru", an online streaming platform provided by Facio Inc.

Fee: 5,000 yen (tax excluded) / 5,500 yen (tax included)
How to Participate:

• After completing your registration, we will send your access ID the day before the seminar.
• The live stream will be hosted on Deliveru, the event streaming platform by Facio Inc. Please click here to log in.
• Recommended System Requirements (in Japanese)
• Test Video Viewing Page
• FAQ

Registration:

 Registration For the Seminar

(You will jump to the registration page in Japanese.)

For inquiries in English, please click here.

Registration Deadline: 5:00 p.m. (JST), Tuesday, September 15, 2026

Notes:

・This seminar will be conducted in Japanese.
・After your registration, we will send an invoice by E-mail or postal mail.
・Please transfer the participation fee by the day before the event or within one week of receiving the invoice.
・Cancellations will not be accepted after payment.
・This seminar can also be registered via Deliveru, with payment options including credit card, convenience store payment, and Pay-easy.
​・Please note that participation may be restricted depending on the registrant’s industry or job function.

Cancellation Policy:

Cancellations made after 3:00 p.m. (JST) on the business day before the event or on the day of the event without prior notice will incur a full participation fee charge, regardless of payment status.

Contact:

For inquiries in English, please click here.
Yano Research Institute Ltd.