Using the data in Table 1, explain how there are economies of scale in the global production of deep-sea green hydrogen electrolysis modules.
Table 1: Global production of deep-sea green hydrogen electrolysis modules
| Year | Global Output (GW) | Average Cost per kW (£) |
|---|---|---|
| 2021 | 8 | 450 |
| 2026 (estimate) | 32 | 280 |
| 2031 (estimate) | 75 | 165 |