---
schema_version: "secwatch.filing_event.v1"
accession: "0001537435-25-000034"
form_type: "8-K"
ticker: "TGEN"
cik: "0001537435"
company_name: "TECOGEN INC."
filed_at: "2025-05-12T23:59:59+00:00"
generated_at: "2026-05-21T23:35:07.713028+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Tecogen Q1 revenue up 17.6% to $7.28M; net loss narrows to $0.66M

## Summary
- Revenue $7.28M (+17.6% YoY); net loss $0.66M vs $1.10M a year ago; EPS -$0.03.
- Gross margin improved to 44.3% from 41.6%; adjusted EBITDA loss narrowed to $381k from $900k.
- Products revenue surged 69.9% to $2.53M on chiller and cogeneration; Services up 5.7% to $4.25M.
- Energy Production revenue fell 26.7% to $0.50M due to contract expirations; cash $4.07M.
- CEO highlights NYSE American listing, data center strategy, and Vertiv partnership.

## SEC filing metadata
- accession: 0001537435-25-000034
- form_type: 8-K
- ticker: TGEN
- cik: 0001537435
- company_name: TECOGEN INC.
- filed_at: 2025-05-12T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1537435/000153743525000034/0001537435-25-000034-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1537435/000153743525000034/tgen-20250512.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001537435-25-000034
- JSON: https://secwatch.observer/filing/0001537435-25-000034.json
- Plain text: https://secwatch.observer/filing/0001537435-25-000034.txt

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