Caterpillar has unveiled a new 3.1MW version of its fast-response natural-gas generator, marking the US manufacturer’s most powerful single-unit offering for standby and demand-response applications.
The Cat G3520 Fast Response generator set, now available globally, is designed for projects requiring uninterrupted power such as hospitals, data centres, and emergency facilities. It can start and accept load from a cold start in under 10 seconds, meeting NFPA 110 standards that govern critical backup power systems.
The generator, available in both 50 and 60 Hz configurations, combines diesel-like responsiveness with the lower emissions and fuel flexibility of natural gas. Caterpillar said the model can help customers reduce downtime while also opening opportunities to earn revenue through participation in grid demand-response and emergency power programmes.
These schemes, run by utilities to balance supply during peak demand periods, offer payments to operators who can quickly reduce or offset consumption. The new unit can be integrated with the company’s Distributed Energy Resource Management System (DERMS), Cat AMP, which automates enrolment and confirmation for such programmes to maximise financial returns.
Melissa Busen, Senior Vice President of Caterpillar’s Electric Power Division, said the addition of the 3.1 MW node reflected growing customer demand for reliable and flexible backup energy. “Our fast-response natural-gas generator sets deliver performance comparable to diesel-fuelled solutions,” she said. “This new model strengthens our customers’ energy resilience in critical applications.”
The launch underscores Caterpillar’s continued push into decentralised and resilient energy systems, as operators seek to safeguard against grid instability while monetising flexible power assets.
