Trane has purchased Calmac Corp., a manufacturer of ice storage tanks. Terms were not disclosed. 

Ice storage tanks store energy to be used later to cool commercial buildings, reducing the load on energy grids. 

“We are pleased to incorporate Calmac solutions into our leading portfolio of energy efficient systems and services,” said Donny Simmons, president of the Ingersoll Rand’s commercial HVAC business. “With Calmac, we are well positioned to offer customers even greater choices for reducing energy and operating costs and capitalizing on the multibillion energy services market opportunity.”  

More than 4,000 buildings worldwide have green HVAC systems that use Calmac technology, including an Ingersoll Rand building in Davidson, North Carolina, officials said. 

Ingersoll Rand is Trane’s parent company.

“Calmac is pleased to be part of Trane,” said Mark MacCracken, Calmac’s CEO. “We know that with the support and investments from Trane and its parent, Ingersoll Rand, Calmac can expand the availability and distribution of our products, serving new and existing customers with the energy storage and ice solutions they demand.”