- Takes a lot of money billions of dollars.
- A lot of time is needed to build.
- By the time it is built and brings back the money, decades will have passed.
- The dams can only be built in certain places because there has to be a certain amount of precipitation available for use. If not, it might affect surrounding habitats and the amount of electricity created.
- When they built the Hoover dam, it affected the land seriously and there were several earthquakes following in California.
- It is very unpredictable and you never know when there will and will not be enough wind to create power.
- Many birds are being killed by the wind turbines. Scientists estimate the amount is around 450,000 birds ad bats.
- They are very loud so it is not very easy to build them where a lot of people live. There are turbines that are designed to make less noise but they are less sufficient and more expensive.
- Wind turbines are very ugly and they can get in the way of natural settings.
- Using it can cause earthquakes.
- It is very location specific so it can only be used in specific places. So other places will have less convenience than other places.
- It can only be a renewable energy source if the reservoirs are managed properly. It is very sensitive to care for. Every single condition has to be right for it to be renewable.
- The cost of geothermal power plants and geothermal heating/cooling systems cost a lot. It costs $3,400 per kilowatt installed. But this is the lowest price which means that it is more likely that it won't be this low all the time.
- The sun doesn't shine all the time which means that this energy source isn't available all the time for use.
- Also having too many clouds covering the sun might affect the amount of energy produced.
- When the solar panel is not directly facing the sun, it creates less energy.
- Even now, the most efficient solar cells only convert just over 20% of the sun rays into electricity.
- The southeastern states don't have much access to solar power which means that they will be creating less energy than other locations in the U.S.