- Pittsburgh worked with Honeywell to initiative an energy conservation program. It focused on geothermal technology which resulted in $3.2 million in annual utility cost savings. The savings are guaranteed by Honeywell, and they will be used to pay for the improvements. Honeywell will also hold energy awareness workshops at the Pittsburgh housing developments for residents. The installation of a geothermal HVAC system will be the foundation of the improvement initiative. As such, the upgrades will not affect the Housing Authority’s capital budget. The work will result in significant carbon emissions reductions of up to 16 million pounds. The Housing Authority of Pittsburgh serves 20,000 residents.