| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | Copper in renewable energy - Overview of copper usage in renewable energy generation |  |  |  |  |
| 3 | - | Installed power in 2011 | Cumulative installed power to 2011 | Copper use in 2011 | Cumulative copper use to 2011 |
| 4 | - | Gigawatts (GW) | Gigawatts (GW) | Kilotons (kt) | Kilotons (kt) |
| 5 | Photovoltaics | 30 | 70 | 150 | 350 |
| 6 | Solar thermal electricity | 0.46 | 1.76 | 2 | 7 |
| 7 | Wind | 40 | 238 | 120 | 714 |
| 8 | Total for all three technologies | - | - | 272 | 1071 |

Question: What year did the copper distribution used in renewable energy and electricity generation amount to 272 kilotons (kt)?
Answer: The total amount of copper distribution used in renewable energy and electricity generation in 2011 was 272 kilotons (kt).