Estimated Annual Costs and Profits for Biofuel Profit Models (in dollars)
| Method | LCFS revenue | Total revenue | Total cost | Total profit |
|---|---|---|---|---|
| Heuristic | 6,837,474 | 37,957,674 | 30,528,134 | 7,429,540 |
| Lexicographic | 9,878,474 | 40,998,474 | 30,528,134 | 10,470,340 |
| Proposed | 11,157,472 | 42,277,472 | 30,933,469 | 11,344,003 |
Because biofuels usually produce less carbon than fossil fuels, they can help reduce emissions. In California, biofuel producers have two sources of revenue: biofuel sales and LCFS (low carbon fuel standard) credits bought from them by companies whose fuel does not meet the state’s emissions standards. Considering how these revenue streams affect one another, Aylin Karaca et al. studied three models for how a biofuel company might maximize profit: the industry-standard heuristic model, a lexicographic model, and a model proposed by the researchers. They concluded that although their model maximized profit, it might not be the best option for firms that need to minimize cash outflows.