By Timothy Gardner WASHINGTON (Reuters) – The administration of President Joe Biden has finalized $1.1 billion in credits aimed to help keep open PG&E Corp’s Diablo Canyon nuclear power plant in California, the Department of Energy said on Wednesday. The $6 billion Civil Nuclear Credit Program was funded by the 2021 bipartisan infrastructure law. The Biden administration set up the credit program to help existing nuclear power plants. It believes the plants are essential to help fight climate change and reaching its goal of what it calls 100% clean electricity by 2035. The first payment of awa…