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.
Vast amounts of land are required to produce biofuels, because biofuels have a very low power density, just 0.3 watts per square meter. 1  For comparison, solar panels have a density of 6 watts per square meter, and an oil well producing 10 barrels of oil each day has a power density of 27 watts per square meter.ut because ethanol contains less energy than oil, the actual energy produced by biofuels was the equivalent of 1.2 million barrels of oil per day. Global energy use from all sources, however, is equivalent to 250 million barrels of oil per day.