The Engine

Stories

Italy stores grid power in giant CO2 dome batteries

Storage-as-a-service offtaker for the Sardinia plant

A white dome the size of seven soccer fields squats over the industrial zone of Ottana, Sardinia, holding 2,000 tonnes of carbon dioxide. It is the business end of the world's first commercial CO2 battery, a 20-megawatt plant that stores 200 megawatt-hours of grid power by compressing the gas into a liquid that is later released through a turbine.

Updated Oct 26

Wu names tough tech incubator chief to lead Boston's economic development

Rule Changes

As of September 2026: Knight's current employer; affiliated with Engine Ventures

Boston's top economic development job sat empty for seven months, and two candidates turned it down over salaries. Wu filled it Wednesday with Emily Knight, who runs The Engine, a Cambridge incubator that turns MIT research into startups.

Updated Sep 16