Barbados
fossil fuel: 100%
hydro: 0%
nuclear: 0%
other: 0% (2001)

Belarus
fossil fuel: 99.5%
hydro: 0.1%
nuclear: 0%
other: 0.4% (2001)

Belgium
fossil fuel: 38.4%
hydro: 0.6%
nuclear: 59.3%
other: 1.8% (2001)

Belize
fossil fuel: 59.9%
hydro: 40.1%
nuclear: 0%
other: 0% (2001)

Benin
fossil fuel: 14.2%
hydro: 85.8%
nuclear: 0%
other: 0% (2001)

Bermuda
fossil fuel: 100%
hydro: 0%
nuclear: 0%
other: 0% (2001)

Bhutan
fossil fuel: 0.1%
hydro: 99.9%
nuclear: 0%
other: 0% (2001)

Bolivia
fossil fuel: 44.4%
hydro: 54%
nuclear: 0%
other: 1.5% (2001)

Bosnia and Herzegovina
fossil fuel: 53.5%
hydro: 46.5%
nuclear: 0%
other: 0% (2001)

Botswana
fossil fuel: 100%
hydro: 0%
nuclear: 0%
other: 0% (2001)