The problem with that average probably is that the countries for which it's more difficult to reach these goals usually are also those countries that account fo

The problem with that average probably is that the countries for which it's more difficult to reach these goals usually are also those countries that account for most of the energy consumption. If Portugal reaches 27% of energy consumption from renewable sources that's not nearly as significant in terms of absolute energy consumption than when say France or Germany reaches that goal. Both of these countries don't have a lot of naturally occurring phenomena or places that lend themselves to hydroelectric or geothermal energy production. So, they have to resort to ways that work everywhere but are comparatively more expensive or difficult to implement. So, while countries like Portugal or Iceland reaching such goals certainly is commendable the 'battle' will be won elsewhere.