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Shizen Energy

A power producer pursuing “a society on 100% renewable energy”

B
NARRATIVE VALUE
Certainty
●●○ medium
ABCDEFG

There is no confirmed −; independently verified + decide the position (B). No unreachable strike-through.= non-additive meter

As of: 2026-Q2Status: ActiveCeiling reason: No confirmed −
History2026-Q2BHistory grows each quarter

Shizen Energy: A power producer pursuing “a society on 100% renewable energy”. On March 11, 2011 — the Great East Japan Earthquake and the Fukushima Daiichi accident. Three men then working at a wind-power company — Ken Isono, Masaya Hasegawa, and Kenji Kawato — became convinced that “the greatest reconstruction support and contribution we can make is to spread renewable energy,” and three months after the disaster, in their early thirties, they founded Shizen Energy. Since completing their first mega-solar plant in Koshi, Kumamoto in 2012, they have expanded from solar, wind, and small-hydro development into regional retail power, overseas projects, and power-data services, under the banner “creating a world on 100% renewable energy, together.” Today they run the business with nearly 500 crew alongside partners and communities across the country. The letter is B; certainty is medium. Unconfirmed concerns are placed under “Watching.” (As of 2026-Q2; estimate based on public information.)

Main narrative

On March 11, 2011 — the Great East Japan Earthquake and the Fukushima Daiichi accident. Three men then working at a wind-power company — Ken Isono, Masaya Hasegawa, and Kenji Kawato — became convinced that “the greatest reconstruction support and contribution we can make is to spread renewable energy,” and three months after the disaster, in their early thirties, they founded Shizen Energy.

Since completing their first mega-solar plant in Koshi, Kumamoto in 2012, they have expanded from solar, wind, and small-hydro development into regional retail power, overseas projects, and power-data services, under the banner “creating a world on 100% renewable energy, together.” Today they run the business with nearly 500 crew alongside partners and communities across the country.

One person’s story (N1)

+ before → after

At a wind-farm opening ceremony, a local grandmother said, “Thank you for bringing industry to a place with nothing like this.” That one remark is at the root of it all. Three months after the Great East Japan Earthquake, Ken Isono and two others founded Shizen Energy, convinced that “the greatest reconstruction support we can offer is to spread renewable energy.” Starting from their first mega-solar plant in Koshi, Kumamoto, the group is now involved in developing over 1 GW of power plants in Japan and abroad. On the construction sites, “treasure-like” craftsmen in their sixties play an active role.

Source nature: greenz.jp / P3 trade media. Positive effects are not used to offset negatives.

Positive / negative effects

+ effects

  • Recognized externally as a renewable-energy developer — for example, selected for LinkedIn's “10 notable startups the data points to.”P3 trade media / LinkedIn

− effects (confirmed)

  • No confirmed −.
Watching (unconfirmed; not counted in the assessment)
  • Resident and expert concerns about specific mega-solar sites

A second look

How to show that the land alteration and ecosystem impacts of building power plants are reconciled with the decarbonization purpose.

Sources

+N1greenz.jp|自然電力代表・磯野謙さんに聞く|2015-12-17|https://greenz.jp/2015/12/17/shizen_denryoku/
+ effectLinkedIn|注目スタートアップ10社|2021|Source URL to be confirmed

How to read this assessment

A Independently verified +, with no confirmed −
B Leans +, with independent backing
C Mixed. A confirmed − sets the ceiling, or much is unverified
D A serious confirmed − sets the ceiling
E A serious − reaches the core of the organization
F Serious and systemic, with little redeeming +
G Only extreme cases
Out of scope An entity whose core purpose is illegal
On hold Independent evidence is scarce on both + and −
  • Reachable upper bound (ceiling): a confirmed − sets the ceiling, and independently verified + decide the position within it. + do not cancel out −.
  • The weight of evidence is not symmetric: only confirmed − are counted; the volume of disputes or allegations goes under “Watching.” + are counted from independent evidence, while an organization’s own PR is treated as “reference.”
  • Size is not value: scale is not used in the assessment. Matters that stay within money or competition—investors, shareholders, sanctions, trade secrets—are also excluded.
  • The letter (assessment) and certainty (how reliable the information is) are separate axes.

This is a translation; the Japanese version is authoritative. The assessments here are generated automatically by AI based on published criteria. The operator does not alter individual results. Because they are AI-generated they may contain errors, and they are opinion and commentary, not statements of fact. Where evidence is insufficient, the entry is marked “On hold.” Requests for correction are accepted via the form.

Terms: Narrative Value = an assessment (A–G) of the distance between the story an organization tells and its reality / Ceiling meter = a visualization of the reachable upper bound / Watching = unconfirmed matters not counted / Protected stakeholders = people, animals, nature, and future generations. | Generated by: AI | As of: 2026-Q2 | Back to top