1Komma5
German installer of home solar, batteries, and heat pumps with Heartbeat AI energy software.
On the record
Checkpoint: IPO roadshow outcome, after three prior delays (2023, 2025, early 2026)
The call
1Komma5 has scale and hardware reach that software-only AI energy platforms lack, but its margins and IPO timeline remain unresolved.
1Komma5 installs solar panels and heat pumps in homes across Europe and runs software that manages how those systems use power, learning from each installation to work better. It is hard to replace because it has 300,000 homes already locked in, 80 local offices, relationships with electricians, and government approvals that took years to get. But the installation business makes very little profit per job, costs a lot of money to run, and the market for new installations is shrinking right now. Big utilities like E.ON could eventually copy the software or team up with competitors, and a rival called Enpal is already struggling. The one thing that matters most is whether the company can make real, growing profits from selling its AI software to other companies and managing power for the electricity grid, instead of just using the software to help sell more installations.
Why
01
AI pressure: Tesla Autobidder and Octopus Energy Kraken. Tesla and Octopus already run live VPP software for utilities, which could commoditize Heartbeat AI's optimization edge over time. Could AI do the core job? Unlikely.
02
Bigger players: E.ON and Octopus Energy. Utilities profit from grid consumption, so they have not copied 1Komma5's model yet, but could bundle installation with energy retail if adoption scales. Could a giant copy it? Probably.
03
What protects it. 300,000+ installed systems, grid registrations, and 80 local craftsmen locations across 7 markets that pure software rivals cannot replicate quickly.
What would change this call
1KOMMA5's mid-2026 IPO roadshow either closes with a priced listing or slips a fourth time. Shows whether public markets validate the profitable, debt-free growth story.
Credit performance and uptake of the June 2026 EUR1B consumer financing program over the next two quarters. Shows whether the financing push adds balance-sheet risk or funds durable growth.
Whether E.ON or Octopus Energy (Kraken) launches a competing integrated installer plus VPP product in Germany. Would show a structurally conflicted incumbent moving to copy 1KOMMA5's model.
Credit performance and uptake of the June 2026 EUR1B consumer financing program over the next two quarters. Shows whether the financing push adds balance-sheet risk or funds durable growth.
Whether E.ON or Octopus Energy (Kraken) launches a competing integrated installer plus VPP product in Germany. Would show a structurally conflicted incumbent moving to copy 1KOMMA5's model.
Key numbers
- Revenue €520M in 2024, up from €458M in 2023
- 300,000+ installed energy systems
- Heartbeat AI controls over 1 GW of capacity
Named risks
- IPO delayed three times since Dec 2023, with no confirmed listing as of mid-2026.
- €1B consumer financing program launched June 2026 reintroduces credit and balance-sheet risk.
- Thin margins in capital-intensive installation business amid European solar demand recession.
- Feb 2024 press scrutiny of 'questionable sales methods' could resurface during IPO process.
- Key financial and headcount figures are company-reported and unaudited.
Rivals, as read in July 2026
| Rival | Direction | Evidence |
|---|---|---|
| Enpal | gaining on | Enpal closed its Hamburg location and laid off 80+ staff, July 2026, after merger talks collapsed Jan 2026 |
| Octopus Energy | contesting | Octopus's Kraken VPP platform competes directly with Heartbeat AI's energy optimization model |
| E.ON | contesting | Traditional utility structurally conflicted by grid-consumption revenue, not yet copying 1Komma5's model |
| Tesla (Powerwall/Autobidder) | contesting | Tesla already deploys an integrated hardware plus VPP model similar to Heartbeat AI, per Nov 2025 Tesla materials |
Questions people ask
- Is 1Komma5 profitable in 2026?
- 1Komma5 states it is debt-free and profitable at the operational hardware level as of a July 2025 press release, but no audited financials are public. Its IPO has slipped three times (2023, 2025, and again through mid-2026), so independent confirmation of profitability is still pending.
- Who is 1Komma5's biggest competitor?
- Enpal is 1Komma5's closest rival. Merger talks between the two collapsed in January 2026, and by July 2026 Enpal closed its entire Hamburg location, laying off 80+ employees, a sign 1Komma5 is gaining ground in Germany's solar and heat pump market.
- Could AI replace 1Komma5?
- No. 1Komma5's core business is physical installation, over 300,000 installed systems and 80 locations across 7 markets as of mid-2025, which software cannot replicate. Its Heartbeat AI energy-optimization platform is itself an in-house AI product, not a thin wrapper vulnerable to being copied by a chatbot.
- Is 1Komma5 going public soon?
- 1Komma5 has delayed its IPO at least three times since December 2023, including questioning a Nasdaq listing in April 2025. As of June 2026, CEO Philipp Schröder was reportedly on an active roadshow, but no listing date or pricing has been confirmed.
- Who owns 1Komma5?
- 1Komma5 is privately held, founded in 2021 in Hamburg by Philipp Schröder, former head of Tesla Germany, and co-founders. It reached unicorn status at roughly a €1 billion valuation in July 2023 after a €430 million raise, with investors including Hamilton Lane, CalSTRS, and Porsche Ventures.
- What is 1Komma5's revenue?
- 1Komma5 reported €520 million in revenue for 2024, up from €458 million in 2023, according to a February 2025 company statement. Sifted reported in May 2025 that this fell short of a previously stated €750 million target for 2024.
Timeline
- 2026-07Enpal closes its entire Hamburg location, laying off 80+ employees
- 2026-061Komma5 launches €1B consumer financing program; CEO on IPO roadshow
- 2026-01Merger talks between 1Komma5 and Enpal collapse
- 2025-11Heartbeat AI opened to third-party energy systems with no license fee
- 2025-07€150M pre-IPO round extended with Sabanci Climate Ventures
- 2025-041Komma5 expresses doubts about a Nasdaq listing
- 2025-02Company reports €520M revenue for 2024
- 2024-12€150M pre-IPO funding round closed
- 2024-02Manager Magazin reports scrutiny of sales methods at 1Komma5 and Enpal
- 2023-071Komma5 reaches unicorn status (~€1B valuation) after €430M raise
Revision history
29 July 2026
First assessed. Protection under test. The text above is fixed as of this date and is not edited afterwards.
In the same band
Sources
- Clean energy startup 1KOMMA5° grows to €520 million, eyes €10 billion target by 2030 (2025-02-17)
- Enpal, 1Komma5, Zolar: Germany's solar giants adapt to harsh market realities (2025-05-02)
- German 1KOMMA5° Turns Unicorn with €430M Raise (2023-07-06)
- Energy unicorn 1KOMMA5° secures €150M Pre-IPO (2024-12-20)
- 1KOMMA5° extends pre-IPO round (2025-07-28)
- German startup extends pre-IPO round (2025-07-28)
- 1KOMMA5° mobilizes €1 billion for residential heat pumps, batteries, and solar systems (2026-06-17)
- Now available for millions of existing energy systems (2025-11-14)
- 1Komma5 Number of Employees 2026 (2026-06-29)
- 1KOMMA5° launches high performance solar module with polysilicon from Germany (2025-03-05)
- 1KOMMA5° awarded by EUPD Research in Europe (2025-05-12)
- Solar-Energie: Wieso 1Komma5° den Rivalen Enpal abblitzen ließ (2026-01-21)