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- America-UPAEP. Energy conservation
- Peru, 2006.12.29
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- America-UPAEP. Energy conservation
- Spain, 2006.10.14
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- Definitive issue. American windmills
- United States of America, 1980.02.07
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- Renewable energy
- Belarus, 2006.10.10
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- Renewable energy
- India, 2007
-
- Renewable energy
- India, 2007
-
- Rajiv Gandhi Renewable Energy day
- India, 2004.08.20
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- Wind turbines
- Denmark, 2007.01.10
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- Wind turbines
- Denmark, 2007.01.10
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- Wind turbines
- Denmark, 2007.01.10
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- Wind turbines
- Denmark, 2007.01.10
-
- Wind turbines
- Denmark, 2007.01.10
-
- Wind turbines
- Denmark, 2007.01.10
-
- Wind turbines
- Denmark, 2007.01.10
-
- Wind turbines
- Denmark, 2007.01.10
-
- Automat stamps. Views of Denmark
- Denmark, 2006
-
- Europa CEPT'04. Vacations
- Denmark, 2004.06.09
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- Renewable energy (Coil issue)
- Australia, 2004.03.30
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- Renewable energy
- Australia, 2004.03.30
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- Alternative energy sources
- Argentina, 2005.10.15
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- Automat stamps. Crouzet type. First-class mail
- Portugal, 2006.05.22
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- Automat stamps. Crouzet type. Wind electric power generators
- Portugal, 2006.05.22
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- The 20th Century
- Portugal, 2000.03.15
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Africa
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- Yugoslavia ⁄ 6 Oceania
- Australia ⁄ 12
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- 2020 ⁄ 19
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- 2016 ⁄ 60
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- 2012 ⁄ 21
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- 2010 ⁄ 33
- 2009 ⁄ 39
- 2008 ⁄ 32
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- 2005 ⁄ 24
- 2004 ⁄ 21
- 2003 ⁄ 12
- 2002 ⁄ 24
- 2001 ⁄ 19
- 2000 ⁄ 14
- 1999 ⁄ 17
- 1998 ⁄ 8
- 1997 ⁄ 14
- 1996 ⁄ 5
- 1995 ⁄ 8
- 1994 ⁄ 10
- 1993 ⁄ 10
- 1992 ⁄ 6
- 1991 ⁄ 4
- 1990 ⁄ 10
- 1989 ⁄ 11
- 1988 ⁄ 4
- 1987 ⁄ 11
- 1986 ⁄ 9
- 1985 ⁄ 8
- 1984 ⁄ 6
- 1983 ⁄ 9
- 1982 ⁄ 7
- 1981 ⁄ 7
- 1980 ⁄ 10
- 1979 ⁄ 6
- 1978 ⁄ 7
- 1977 ⁄ 4
- 1976 ⁄ 8
- 1975 ⁄ 9
- 1974 ⁄ 3
- 1973 ⁄ 8
- 1972 ⁄ 3
- 1971 ⁄ 5
- 1970 ⁄ 6
- 1969 ⁄ 4
- 1968 ⁄ 5
- 1967 ⁄ 8
- 1966 ⁄ 2
- 1965 ⁄ 2
- 1964 ⁄ 3
- 1963 ⁄ 2
- 1962 ⁄ 3
- 1961 ⁄ 5
- 1960 ⁄ 3
- 1959 ⁄ 2
- 1958 ⁄ 2
- 1957 ⁄ 4
- 1955 ⁄ 3
- 1954 ⁄ 2
- 1953 ⁄ 3
- 1951 ⁄ 3
- 1949 ⁄ 1
- 1947 ⁄ 1
- 1946 ⁄ 3
- 1945 ⁄ 1
- 1944 ⁄ 3
- 1943 ⁄ 1
- 1942 ⁄ 2
- 1939 ⁄ 2
- 1938 ⁄ 1
- 1937 ⁄ 1
- 1936 ⁄ 1
- 1934 ⁄ 1
- 1932 ⁄ 1
- 1923 ⁄ 1
- 1921 ⁄ 1
- 1920 ⁄ 1
- 1916 ⁄ 1
- Alphonse Daudet ⁄ 5
- Cattle mills ⁄ 9
- Children's toys ⁄ 9
- Don Quijote ⁄ 32
- Hydroelectricity ⁄ 37
- Industrial mills ⁄ 29
- Irrigation and water wheels ⁄ 55
- Manual and Kitchen mills ⁄ 31
- Miguel de Cervantes Saavedra ⁄ 24
- Mills in Art ⁄ 155
- Mills within the landscapes ⁄ 202
- Mortars and grinding stones ⁄ 22
- Olive oil and wine mills ⁄ 8
- Personalized stamps ⁄ 2
- Stylized mills ⁄ 155
- Sugar and salt mills ⁄ 21
- Various ⁄ 144
- Watermills ⁄ 225
- Wind pumps and farm windmill ⁄ 102
- Wind turbines ⁄ 273
- Windmills ⁄ 519