Ivanpah’s entrepreneurs haven’t paid off the challenge’s $1.6-billion federal personal loan, and it’s unclear whether they’ll have the capacity to do so. Houston-dependent NRG Energy, which operates Ivanpah and is a co-proprietor with Kelvin Energy and Google, reported that federal officials took element during the negotiations to close PG&E’s towers https://www.diigo.com/item/pdf/ba775/ty2w