I wouldn't think of the grant as being segregated into separate categories - rather, it is a single $50M Drilling fund that will be awarded as 7 grants of approximately $7M.
I attended a seminar where representatives who developed the fund explained the criteria for successful application. The fund will not bankroll any single project, but rather is aimed at assisting the proof-of-concept for the various models of geothermal energy production.
As such, companies with a unique strategy, such as PAX's 'blind' sediment hosted reservoir or PTR's HEWI model have a very high probability of attaining the grant.
Cheers
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