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Agency for Natural Resources and Energy Cybersecurity Guidelines for Energy Resource Aggregation Business Revised

On November 29, 2017, the Ministry of Economy, Trade and Industry (METI) revised the Cybersecurity Guidelines for Energy Resource Aggregation Businesses, a compilation of cybersecurity measures that businesses participating in the energy resource aggregation business (hereinafter referred to as the “ERAB”*1) framework should take.

1. Outline of the guidelines

ERAB is a business framework in which consumers’ energy resources (e.g., storage batteries, solar energy and the demand response (DR) program) are utilized. Concerning this framework, in April 2017, METI formulated Cybersecurity Guidelines for Energy Resource Aggregation Businesses to present cybersecurity measures that businesses participating in the ERAB framework should take.

2. Background and details of the revision

In August 2016, METI established a Cybersecurity Working Group under the ERAB Study Group.*2 Since then, the working group has been holding discussions concerning ideal approaches to cybersecurity for the ERAB framework and other issues.

Against this backdrop, METI decided to revise the guidelines, in particular, to cover cybersecurity measures that businesses utilizing or addressing Power Source Class I’*3 power sources are required to take.

Key points of the revision

  • Introducing systems for authorization and encryption
    The revised guidelines require businesses to introduce mutual device authorization systems and communication encryption to protect their digital devices.
  • Limiting access to ERAB systems to specified aggregators
    According to the revised guidelines, electricity transmission/distribution businesses are to introduce systems to limit the access to ERAB systems to specified aggregators.

*Notes:

  1. The term “ERAB” refers to a business framework in which businesses make use of virtual power plants (VPP) and the DR program, and provide a variety of services related to: electricity adjustments, avoidance of supply-demand imbalances, electricity-rate cuts, avoidance of output controls and other measures to their customers, which include electricity transmission/distribution businesses, electricity retailers/consumers, and renewable-energy utilities.
  2. The study group, established in January 2016, aims to develop the ERAB framework and, to this end, it will streamline the overall perspectives of challenges in a variety of areas, e.g., developing communication standards and systems, at the working-level through industry-academia-government collaboration.
  3. Power Source Class I’ is a category of power sources and other supplies that must be maintained for general electricity transmission/distribution businesses as their dedicated power sources. The Class 1 Power Sources are utilized to address demand by adjusting electricity supply during particularly hot summers or severe winters that Japan faces approximately once every decade.

Release date

November 29, 2017

Division in Charge

Advanced Energy Systems and Structure Division, Energy Conservation and Renewable Energy Department, Agency for Natural Resources and Energy

Ministry of Economy, Trade and Industry1-3-1 Kasumigaseki, Chiyoda-ku, Tokyo 100-8901, Japan Tel: +81-(0)3-3501-1511
Copyright Ministry of Economy, Trade and Industry. All Rights Reserved.