Ukraine
fossil fuel: 48.6%
hydro: 7.9%
nuclear: 43.5%
other: 0% (2001)
United Arab Emirates
fossil fuel: 100%
hydro: 0%
nuclear: 0%
other: 0% (2001)
United Kingdom
fossil fuel: 73.8%
hydro: 0.9%
nuclear: 23.7%
other: 1.6% (2001)
United States
fossil fuel: 71.4%
hydro: 5.6%
nuclear: 20.7%
other: 2.3% (2001)
Uruguay
fossil fuel: 0.7%
hydro: 99.1%
nuclear: 0%
other: 0.3% (2001)
Uzbekistan
fossil fuel: 88.2%
hydro: 11.8%
nuclear: 0%
other: 0% (2001)
Vanuatu
fossil fuel: 100%
hydro: 0%
nuclear: 0%
other: 0% (2001)
Venezuela
fossil fuel: 31.7%
hydro: 68.3%
nuclear: 0%
other: 0% (2001)
Vietnam
fossil fuel: 43.7%
hydro: 56.3%
nuclear: 0%
other: 0% (2001)
Virgin Islands
fossil fuel: 100%
hydro: 0%
nuclear: 0%
other: 0% (2001)