Nothing came of it at the time because they presumably failed to...

Nothing came of it at the time because they presumably failed to get a power purchase agreement that made economic sense. They not being KPO but the owners of Klamath Hills Geothermal LLC. The matter was fought, KHG lost.

As per the announcements, new government in charge in the US now, and big companies are seeking to offset their carbon footprint by putting money into projects like this one which make it more attractive than it was four years ago.

As per the annual results released last month, KPO has taken a 50+% stake in KHG so now they are the drivers of that company and get the say so on what happens rather than being a passenger.

From what I can see there has been a large amount of work already done, some four years ago in relation to the original plans, and then there is the engineering and equipment sourcing for the modular 10MW plant designed for Saddle Hills, which would not take much effort/cost to adapt for other uses such as, lets say, geothermal.