---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-025002"
form_type: "8-K"
ticker: "EFOI"
cik: "0000924168"
company_name: "ENERGY FOCUS, INC/DE"
filed_at: "2026-04-14T23:59:59+00:00"
generated_at: "2026-05-15T06:31:12.656321+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Energy Focus invests ~$1.1M for 35% stake in Japan energy storage project, targeting >35% IRR

## Summary
- Joint investment with Meihodo and Euka Power in Asakura, Fukuoka energy storage plant; grid application response received from Kyushu Electric Power.
- Total project ~500M JPY ($3.13M); EFOI’s 35% share ~175M JPY ($1.1M); expected commercial operation in H2 2026.
- Project aims for >35% IRR via Japan’s balancing market, capacity market, and arbitrage; marks pivot to Energy-as-a-Service platform.
- Plans to replicate model, targeting over 1GW of energy storage and product sales in Asia-Pacific over next five years.

## SEC filing metadata
- accession: 0001628280-26-025002
- form_type: 8-K
- ticker: EFOI
- cik: 0000924168
- company_name: ENERGY FOCUS, INC/DE
- filed_at: 2026-04-14T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/924168/000162828026025002/0001628280-26-025002-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/924168/000162828026025002/efoi-20260330.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-025002
- JSON: https://secwatch.observer/filing/0001628280-26-025002.json
- Plain text: https://secwatch.observer/filing/0001628280-26-025002.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.