Hourly Clean-Energy Matching: Clock & Ledger View

Renewable-energy certificates (Guarantees of Origin in the EU, I-REC internationally) let a buyer claim "100% renewable electricity" by matching their annual consumption against a renewable plant's annual generation — regardless of what hour either happened. This 2D version renders the same 24-hour grid as a radial clock face (one wedge per hour, coloured by whether that hour clears on its own) paired with a running-balance ledger line that shows exactly how an annual certificate scheme "borrows" surplus daylight hours to paper over deficit night hours. Toggle between annual and strict 24/7 hourly matching to watch the certified-green claim and the physical reality diverge.