The Van region has a large Kurdish population, and the Van cat has been referred to as the Kurdish cat or Kurdish Van cat, and made a symbol of Kurdistan in Kurdish nationalist circles.
Each cubic meter (m 3) of biogas contains the equivalent of 6 kWh of calorific energy. However, when we convert biogas to electricity, in a biogas powered electric generator, we get about 2 kWh of useable electricity, the rest turns into heat which can also be used for heating applications. 2 kWh is enough energy to power a 100 W light bulb for 20 hours or a 2000W hair dryer for 1 hour.
One gigajoule is one billion joules. The amount of natural gas consumed each year in a typical Canadian home is equivalent to 120 gigajoules. One BTU is 1054.615 joules, equivalent to the amount of energy released by completely burning one wooden match. The amount of energy represented by one gigajoule is equivalent to about 30 litres of gasoline, 39 litres of propane, 278 kilowatt-hours of electricity or 45.5 kilograms of coal.