A consortium of Oklahoma‘s geothermal industry leaders is testing the latest technology at eight homes in an Oklahoma City subdivision to see what can be done to make the systems more affordable for consumers.

“That’s the holy grail of geothermal: finding a way to lower the cost,” Oklahoma Gas and Electric Co. spokesman Tim Hartley said.

OG&E is one of more than a dozen companies teaming up on the research that began Wednesday in Oklahoma City’s Hope Crossing subdivision, the largest Habitat for Humanity and geothermal neighborhood in the United States.

“We’re pulling in the leading experts in the world on this particular project,” Hartley said.