Wind power

Wind power is a useful sustainable way to power objects. The average wind turbine is about 2 megawatts. Two megawatts costs around $2.6-4 million! Smaller wind farms are much more profitable then bigger ones as big ones are expensive and it would e easier to make a profit out a smaller wind farm. Even though wind power is sustainable and turbines have been around for quite a long time, coal power is much more popular.

Wind power may be sustainable but it also has many disadvantages. The wind does not always blow so there is no power available. Even in places with lots of wind you have to first get approval in that area. If you do get approval, it is most likely to be not near civilisation and closer to wildlife. Wind turbines create sound so they can noisy and they could be a threat to the animals/planets

Solar power

Solar power is another source of sustainable power. The average cost per watt is $2.14. If you are going to be making a megawatt solar farm, then expect to pay around 3 million dollars. The average cost to put solar panels on your house is $5130. Like wind power, solar power is renewable. Solar power can also help cut power bills and is low maintenance.

What are the disadvantages of solar power you ask? Well what happens to solar panels after they where out. After 20-30 years most solar panels don’t function very well and you will have to chuck out. Some bits of the solar panel can be recycled, but the bits that can’t just go waste. Even though solar panels do work in cloudy and stormy weather, they don’t function as well. The initial cost is also very expensive.

Coal Power

Coal is a very popular source that humans use to power pretty much everything. But coal is not renewable. That means we don’t have an endless supply of coal. Coal also helps create greenhouse gases.

Coal is very reliable compared to solar and wind. It is also normally cheap and easy to get. Wind and solar do not have those factors but most scientists say that renewable energy (solar and wind) will have a better long term effect then coal or nuclear power.