wood
Yes, firewood is a convential source of energy. It is because firewood is widely used for cooking and heating in our country, more than 50% of energy used in villages come from firewood.it has become difficult to use firewood because of decreasing forest area.Advantages of using firewood:-* Most common in rural areas of India for cooking.* Easily available to the villagers.Disadvantages of using firewood:-* Leads to deforestation.* Time consuming.* Polluting can cause eye pollution.* Gives green house effect.
It is widely used but not as much as hydrocarbons and hydroelectric. Japan has extensive nuclear facilities, Europe has many.
Anything you want It is widely used in Scandinavian countries for home heating. Especially Finland.
Coal is the most widely used source of non-renewable energy.
Electric heating is widely used; evidently it is feasible.
Conventional sources of energy include coal, oil, natural gas, hydropower, and wood. Photos of these sources of energy are widely available on the Internet.
Renewable source of energy creates little or no pollution compared to burning of fossil fuels.Solar energy is widely used renewable source of energy.Hydroelectric energy and wing energy is also used as a renewable sources of energy.
The most commonly used and widely available sources of eco-friendly energy are the sun, wind, water, and bio-diesel (from corn, grass, cooking oil, ect.).
"Hydro" is short for "hydropower", or energy that is created by water in motion. While it is not typically used in homes, hydropower is a renewable energy source that may be more widely available in the years to come.
That will vary widely from one country to another; it also varies with time. In some countries, a lot of energy is used for heating. Where heating isn't used, both lighting (light bulbs) and taking showers uses a lot of energy. In houses with solar homes, there is no recurring cost for taking showers (technically it still uses energy, but it doesn't get on the power company's bill), so in that case, lighting is probably the biggest consumer.
In some cases, or even in most, alternative energy is expensive to produce. Energy such as coal or gas, which can be found in the earth are far less expensive to obtain. Solar heating panels can heat your whole home but few can afford the $5-6000 it would cost.
Currently, the most efficient alternative energy source at around 95% in the case of large hydropower dams, and 90% for smaller ones, tied with tidal power (not widely used).