There are many ways to produce electricity using non-renewable sources. Some of these ways include: Coal, Oil and Natural gases. Non-renewable means once a source is used it can not be returned to its original form. I think the best way for New Zealand to produce electricity is by using Natural gases. This is because it can be used for cooking, heating and fuel. Natural gases also do not release dangerous gases or have any harmful effects to the environment. I also believe Natural gases are the best way for our country because it is easy accessible and affordable for people to use.
Coal is an energy source when combined with heat, is used to create electricity. It can be also as a fuel for heat. Coal, when heated releases smoke which affects the environment and contributes to global warming. Coal is used almost all around the world in factories creating electricity. Most countries do not consider this fact. Coal is found in various places in the world and can be considered as a common resource. Coal is created from animals bones, rotting trees all under the earth which has been compressed and heated over thousands of years. Because of this coal is not a source that can be maintained and humans can not continue to abuse coal.
Oil is an energy source used all around the world to create electricity and many other purposes. Oil leak out in the ocean is around the earth and is pollutes marine life. There are lots of countries which mine oil too. Oil is one of the most important resources. Most of peoples daily needs depend on oil. Oil is created by compressed waste over thousands of years and this is why humans cannot create this type of fuel. As time passes oil will become scarce and its prices will continue to rise. People will have to find an efficient way to replace oil.
Natural gases is a source found in the earth that can be used for heating, cooking and can also be used for electricity. Natural gases do not release dangerous gases into the atmosphere like coal does. Natural gases like all the other sources has been compressed over thousands of years. But Natural gases is not easy to find. People are using it at a fast rate and the original source can be renewed at an efficient pace. Natural gas is good for controlled fires, cooking and heating. Lots of people use a gas heater rather than an old fire place. People also use gas ovens.
In conclusion all these non-renewable ways are not sufficient. But I think the best non-renewable source is Natural Gases because it is partially clean for the environment and is easy to control.