PPSI vs STEM Comparison

Pioneer Power Solutions Inc designs, manufactures, integrates, services, and sells distributed energy resources, on-site and mobile power generation equipment, and a platform of mobile electric vehicle (EV) charging solutions. Its principal products and services include custom-engineered electrical transformers, switchgear and engine-generator sets and controls, complemented by a national field-service network to maintain and repair power generation assets. The Company launched two new product platforms namely, PRYMUS, a new, mobile on-site power system concentrating on customers with requirements of 1-10 megawatts of mobile power and PowerCore, a residential and small commercial based primary generator system integrating a DC fast charger into one solution.

Stem Inc is a provider of energy storage systems. The company bundles third-party hardware with its proprietary Athena software to provide customers a turnkey solution. Stem sells its solutions to commercial and industrial customers as well as independent power producers and renewable developers. Its solutions help customers maximize renewable energy generation and help build a cleaner and more resilient grid. The Company operates as one operating segment that is focused exclusively on technology services that transform the way energy is distributed and consumed.