CheckWatt, founded in 2017, operates an energy service platform that measures, monitors, and controls energy storage, renewable electricity production, and flexible electricity consumption across Nordic markets. The company aggregates thousands of batteries through a virtual power plant, using artificial intelligence to optimise charging and discharging patterns whilst delivering grid services to system operators such as Svenska kraftnät.
The company began by providing measurement services for Sweden's electricity certificate system and has expanded into a broader offering of measurement, monitoring and control services for households and businesses. Its core proposition centres on balancing asset profitability with grid stability - optimising when and how batteries charge and discharge to capture value in flexibility markets whilst supporting the renewable energy transition.
CheckWatt operates primarily in Sweden, where it describes itself as the country's largest independent aggregator of flexible energy sources. The company is expanding into Finland, Denmark, and Poland, positioning itself as a Nordic pioneer in integrating distributed flexibility resources into electricity systems. The technical backbone relies on artificial intelligence and real-time monitoring systems to coordinate thousands of individual energy assets as a unified network.
