Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Power Source | Number of Generators | Power Capacity (GW) | % of total Capacity | Capacity factor | Annual Energy (billion kWh) | % of annual production |
| --- | --- | --- | --- | --- | --- | --- |
| Hydro | 4048.0 | 78.7 | 7.5 | 0.463 | 319.4 | 7.7 |
| Wind | 781.0 | 46.0 | 4.4 | 0.298 | 120.2 | 2.9 |
| Wood | 345.0 | 8.0 | 0.76 | 0.535 | 37.5 | 0.9 |
| Biomass | 1660.0 | 5.2 | 0.5 | 0.421 | 19.2 | 0.50 |
| GeoThermal | 226.0 | 3.5 | 0.33 | 0..499 | 15.3 | 0.37 |
| Solar | 326.0 | 1.6 | 0.16 | 0.128 | 1.8 | 0.04 |
Question:
What is the power capacity when the generators were 781?
Answer:
46.0