1KOMMA5°, the Hamburg-based New Energy company and operator of the Heartbeat AI energy management software, has reported a significant increase in demand for heat pumps. The company achieved a 1,300 percent increase in sales in 2024, growing from 50 heat pumps sold at the beginning of the year to 700 in December. In total, the company, which was founded in 2021, sold around 4,000 heat pumps last year.