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Jul 28, 2026 Agency for Natural Resources and Energy Solar & renewable energy Under consideration (not final) Aiming for effect on April 1, 2027

Commercial Solar Support to Focus on Community-Friendly Types: Categories Under Review (Aiming for April 2027)National support for solar is likely to focus on types that get along with communities

At a council meeting on July 28, 2026, the Agency for Natural Resources and Energy said it will work out details of focusing FIT/FIP support for commercial solar from FY2027 on types expected to be installed in harmony with local communities. Aiming for effect on April 1, 2027, it will first review which categories to cover, then decide certification standards, FIT or FIP, and support prices and periods.

How the review will proceed (planned)
  1. 1. CategoriesSelect categories expected to coexist with communities (until around September)
  2. 2. Institutional issuesCertification standards, FIT or FIP, prices and periods (October to the following January)
  3. 3. Public commentDraft revisions of ordinances, notices and guidelines (February to March)
  4. 4. EffectAiming for April 1, 2027

Key points

  • Order of review: first the categories to receive focused support, then institutional issues such as certification standards, FIT versus FIP, and support prices and periods
  • Example viewpoints for choosing categories: expected future deployment, how easily coexistence with the community is achieved, and the characteristics of the FIT/FIP system
  • The material notes that rooftop solar needs no new land development and has relatively limited additional impact; categories with local or national government involvement are also raised as a viewpoint
  • Estimated potential for commercial rooftop is 137.2 GW; current FIT/FIP deployment is 6.1 GW for rooftop and 54.6 GW for ground-mounted
  • Plan: organize results on categories around September, discuss institutional issues from October to the following January, hold public comment in February and March, and implement on April 1
Who is affected: Business owners considering new solar, including rooftop and self-consumption, and operators that already hold ground-mounted projects

What to do in practice

  • For new solar plans from FY2027, proceed while checking the status of the review on eligible categories, prices and periods
  • If you are considering solar on your own roof, grasp the available room, such as roof area and condition
Note: Not yet decided. The categories to be supported, support prices and periods are still to be reviewed and decided by councils and the price calculation committee, and may change in content and timing. The potential figures come from estimates by the Institute of Energy Economics, Japan and others; the rooftop/ground split of current deployment is a mechanical estimate based on installation-type ratios.

The government is thinking of concentrating its support for solar power on types that can get along well with the surrounding area. For example, systems on rooftops do not need new land to be cleared, so their impact is thought to be small. Which types will be chosen will be decided from now.

Room for solar (estimate) and what exists now
Commercial rooftop: room (estimate)137.2GW
Commercial rooftop: now6.1GW
Residential: room (estimate)49.2GW
Residential: now17.3GW

Points

  • Not decided yet: which types to support will be discussed and decided from now
  • Solar on rooftops does not use new land, so its impact on the surroundings is considered small
  • The aim is to start the new rules on April 1, 2027
For example: It is like using the rooftop of an existing school building instead of building a new one on the playground: it affects the surroundings less.

What the words mean

Coexistence with communities
A power plant living in harmony with nearby residents, nature and scenery
Type
A kind or group
Sources (official)
Checked against the source on: Oct 24, 2026

This article previews items that are still under consideration or only requested. Whether they will be adopted, and whether the content or timing will change, is not final. Please check the official source again once a decision is made.

This article summarizes and explains materials published by government agencies and is not advice on any individual case. Rules can change, so for actual procedures and decisions always check the latest original materials and consult professionals such as tax accountants or labor and social security attorneys. English, Simplified Chinese and Traditional Chinese versions are translations prepared from the Japanese articles for convenience. If anything differs, the Japanese text and the original source take precedence.

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