Siemens Energy buys Camlin Group, maker of transformer monitoring software

Siemens Energy plans to acquire grid monitoring, analytics and asset digitalization software company Camlin Group to ensure renewables can be properly integrated into the world’s electricity grids.

“Grid constraints are one of the key bottlenecks for renewable growth overall, so strengthening the grid will, by definition, enable further wind and solar deployment,” a spokesperson for Siemens Energy told pv magazine.

They added that Camlin Group’s advanced sensor-based monitoring technology for transformers is essential for wind and solar farms, as transformers are critical assets connecting generation to the grid.

“Enhanced, real-time monitoring enables predictive maintenance, reduces unplanned downtime, and ultimately improves the reliability and availability of power,” the spokesperson said. “This kind of digitalization and proactive grid management will become increasingly important as higher shares of variable renewables are integrated into the system.”

In September 2025, Siemens Energy invested around €220 million to expand its transformer factory in Nuremberg, Germany. It said at the time it was responding to the increased demand for transformers to stabilize power grids and connect solar and wind infrastructure to the grid. The two companies will support utilities in managing complex power flows across electricity grids.

A spokesperson for Camlin Group told pv magazine the company already works with international renewable energy companies across solar, offshore and onshore wind, and battery energy storage, helping them to strengthen their portfolio performance.

“Our technology enables earlier detection of emerging risks and supports predictive, condition‑based maintenance at scale, essential for maximising renewable asset availability and grid hosting capacity.

“With Siemens Energy’s investment and reach, we can now move faster, helping utilities and network operators strengthen system resilience, reduce unplanned outages and integrate larger volumes of renewable energy with confidence,” the Camlin Group representative added.

The Northern Irish company is headquartered in Lisburn, Belfast, and operates across the UK, Europe, North America, Australia, and Asia. If Siemens Energy’s acquisition receives full regulatory approval, the deal is expected to close before the end of this year. The larger company plans to wholly own Camlin Group, but management will remain independent. Financial details were not disclosed.