1KOMMA5° Tech Stack

Virtual power plant platform aggregating distributed renewable energy assets across Europe

Services for Renewable Energy Hamburg, HH 1,001–5,000 employees Founded 2021 Privately Held

1KOMMA5° operates a decentralized energy aggregation business built on Heartbeat AI, software that pools rooftop solar, batteries, heat pumps, and EV chargers into a coordinated virtual power plant. The tech stack—Node.js, NestJS, PostgreSQL, React, Next.js, Flutter on GCP—supports real-time energy asset orchestration and market participation. The hiring mix skews heavily toward engineering (184 roles), ops (103), and construction (62), reflecting a capital-intensive, installation-driven model: the platform is only valuable if systems are deployed and connected at scale.

Tech Stack 104 technologies

Core StackRAG Meta Ads NestJS Node.js Prisma PostgreSQL TypeScript BigQuery Terraform GitHub Actions Datadog React Next.js Flutter Wallbox iPad iPhone Taboola Outbrain Microsoft Office GCP Cloud Run Cloud SQL Pub/Sub Zoho Google Drive Excel PowerPoint Google Sheets Google Slides+74 more

AdoptingWallbox

What 1KOMMA5° Is Building

◆Challenges

Optimizing sales processes
Optimizing energy usage
Connecting customers to electricity market
Increasing profitability of connected installations
Providing cheapest cleanest tariff
Connecting distributed energy resources
Connecting customers to cheapest tariffs
Selling complex energy solutions
Process inefficiencies
Integrating multiple energy systems

▲Active Projects

Heat pump installation
Water storage installation
Pv system installation
Heat pump and photovoltaic project coordination
Heartbeat software development
Installation of photovoltaic systems
Charging infrastructure installation
Heartbeat platform development
Project handover
Installation of radiators and pipe insulation

Hiring Activity

Decelerating600 roles · 150 in 30d

Department

Engineering

184

Ops

103

Sales

Construction

Product

Finance

Marketing

Support

Seniority

Mid

156

Junior

119

Senior

103

Intern

Manager

Lead

C-Level

Director

Notable leadership hires: Performance Marketing Lead, Chief of Staff, Managing Director, Wärmepumpen Academy Lead, Commercial Lead

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About 1KOMMA5°

1KOMMA5° sells distributed energy resource management software and installation services across seven countries with 80 regional service centers. The core product, Heartbeat AI, automatically connects customers' solar, batteries, heat pumps, and charging systems to wholesale electricity markets, allowing them to sell power during high-price periods and consume during negative-price windows. As of early 2025, the platform orchestrates roughly 50,000 customer energy systems with 600 MW aggregate capacity. The company separated Heartbeat AI into a standalone legal entity to license the software to non-1KOMMA5° customers and existing utilities. Primary pain points center on scaling the connection of distributed assets to electricity markets, optimizing the profitability of aggregated installations, and automating the sale of complex energy bundles to residential customers.

HeadquartersHamburg, HH

Company Size1,001–5,000 employees

Founded2021

Hiring MarketsGermany, Peru

Frequently Asked Questions

What is 1KOMMA5° building right now?

Heartbeat AI software for real-time energy asset coordination, plus ongoing heat pump, solar, battery, and charging infrastructure installations across Europe. Heartbeat manages ~50,000 customer systems with 600 MW capacity.