Electra Research, a four-year-old Brooklyn startup, is retrofitting induction stoves with embedded batteries to transform household appliances into grid-balancing assets. The approach turns a kitchen stove into a battery that can store roughly 5 kilowatt-hours of energy — enough to power the cooktop and a few other small loads — and discharge it during peak hours when electricity is dirtiest and most expensive.
The technology's emissions impact hinges on time-of-use shifting. By storing power when solar and wind generation is abundant and discharging when fossil-fuel peaker plants typically fire up, each unit could cut the carbon footprint of cooking by up to 50 percent compared to a standard gas stove, according to the company's estimates. Electra's system also eliminates direct methane emissions from gas combustion in homes.
The pilot program involves 50 homes in Brooklyn and Queens, with units priced at $2,500 to $3,500 before incentives. Electra has raised $12 million in seed and Series A funding led by Breakthrough Energy Ventures. The founders estimate the rooftop solar-paired version could save households $400 to $600 annually on energy bills through load shifting and reduced peak demand charges.
New York City's 2023 gas ban in new buildings and the state's nation-leading building decarbonization mandates create a ready market. The startup's approach aligns with policies targeting buildings, which account for roughly 30 percent of U.S. greenhouse gas emissions. However, scaling depends on replacing 40 million U.S. gas stoves with electric alternatives and pairing them with smart controls.
Critics question the unit economics at scale, noting that a dedicated home battery like a Tesla Powerwall costs about $12,000 for 13.5 kWh and lasts longer. Electra acknowledges the stove battery's storage capacity is modest but argues that integrating storage into an appliance that already uses five to seven kWh for cooking eliminates the need for a separate device, improving the economics through shared components.
Counter-argument: The embedded stove battery stores only 5 kWh — less than half a standard home battery — and replaces a natural gas appliance that costs roughly one-third the price. Without deep government subsidies or time-of-use rate structures that penalize peak cooking, the payback period may prove unattractive to most homeowners.