SparkCharge

SparkCharge is a Somerville, MA-based climate technology company founded in 2017 that pioneered the concept of mobile, off-grid electric vehicle charging. The company manufactures portable battery-powered DC fast charging (DCFC / Level 3) units and operates what it calls the world's largest off-grid EV fleet charging network. Its flagship Charging-as-a-Service (CaaS) model eliminates the need for costly grid infrastructure upgrades by deploying energy directly to vehicles wherever they operate - whether at fleet depots, ports, railyards, events, or remote locations. SparkCharge claims to have delivered over 6.3 million kWh across 200,000+ charging sessions, eliminating over 700,000 gallons of gas equivalent and saving 7,000+ tons of CO2.

SparkCharge's technology stack spans mobile battery chargers, off-grid power hubs, and permanent EV infrastructure, giving fleet operators a turnkey, scalable path from zero to full electrification without long utility approval timelines. Customers span delivery fleets (including Amazon), rideshare and autonomous vehicle operators, automotive OEMs, ports, and event organizers. The company's approach - deploying power in days rather than years - directly addresses one of the biggest bottlenecks in US fleet electrification: the inability of the existing grid to support rapid EV adoption at scale. Its recent positioning around Vehicle-to-Grid (V2X) and distributed energy resources further underscores its strategic relevance to grid resilience.

For the US energy supply chain, SparkCharge represents a critical bridge technology. By decoupling EV charging from fixed grid infrastructure, it enables fleet operators to electrify immediately rather than waiting years for utility upgrades. This accelerates EV adoption across logistics, transportation, and public-sector fleets - sectors that are central to US decarbonization goals. With 15 funding rounds completed, a growing roster of enterprise clients, and increasing focus on microgrid and V2X integration, SparkCharge is well-positioned as a key enabler of the distributed energy future.