Filings and reports: SEC filings, rating agency reports and court dockets.
Local and state records: county and city records, and state permits.
Power and site: utility and FERC dockets, grid operator queues and imagery.
Market prices, each labeled Trade, Dealer quote, Fund mark or Marden model, with source and date. A fund mark is never called a market price.
Every value is tagged Fact, Reported, Assumption or Model. One click opens the source.