| Policies | Start 2004 | 2013 | 2014 |
| Countries with policy targets | 48 | 144 | 164 |
| States/provinces/countries with feed-in policies | 34 | 106 | 108 |
| States/provinces/countries with RPS/quota policies | 11 | 99 | 98 |
| Countries with tendering/public competitive bidding | n/a | 55 | 60 |
| Countries with heat obligation/mandate | n/a | 19 | 21 |
| States/provinces/countries with biofuels mandates | 10 | 63 | 64 |