The System Buy Price is the weighted average of accepted Offers in Settlement Period (j); Determined in accordance with Section T4.4.2.

The System Sell Price (SSP) and the System Buy Price (SBP) are the ‘cash-out’ prices or ‘imbalance prices’ that are used to settle the difference between contracted generation or consumption and the amount that was actually generated or consumed in each half hour trading period. SSP is paid to BSC Trading Parties who have a net surplus of imbalance energy, and SBP is paid by BSC Trading Parties who have a net deficit of imbalance energy. These prices are designed to incentivise Parties to balance their position.