- Flexibility- can be used in large scale wind farms as well as in small individual turbines.
- Non-polluting, environmentally friendly and sustainable- produces 50x as much energy over lifetime as is consumes by construction.
- Produces low-cost power if developed commercially, close to zero fuel costs and low maintenance costs.
- Could be installed off-shore to minimise visual impact.
- Can only provide small proportion of total energy needs due to number of turbines needed in relation to space available.
- Unslightly on-shore.
- Infrastructure required for wind farms damages landscape.
- Noise and vibration has potential to affect local community.
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- Eliminates fuel costs as it's not required.
- Highly efficient with minimum running costs due to higly automated operation.
- Hydroelectric plants have longer economic lives than fuel-fired generation.
- Set-up and construction costs are recovered in a few years as vast amount of electricity is generated.
- Reservoirs provide improved leisure and tourism.
- Large dams can control flooding and protect towns downstream.
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- Extremely expensive to contruct dams and power plants.
- Flooding of vast areas of land to create reservoir required local population to relocate.
- Rivers may be diverted, which causes problems to local community.
- Dam failures could cause massive destruction due to flooding.
- Can be disruptive to surrounding aquatic ecosystems.
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- Huge amounts of energy available from Sun.
- Pollution-free during use.
- Low operating costs and very little maintenance required.
- Produces enough electricity for the national grid to cope with peak times.
- Local grid-connected systems can be self-sufficient.
- Relatively expensive set-up costs.
- Can be more expensive than other sourced electricity.
- Relies on weather conditions.
- Energy is lost in converting DC to AC.
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Biomass and biofuels
- Relatively inexpensive source.
- Large amounts of waste biomass materials available.
- Production of biogas reduces the release of methane.
- By-products of biogas can be sold and used as compost and fertiliser to improve soil conditions.
- Ecological damage, deforestation and intensive farming practices.
- Expensive processing costs of converting biomass into fuels with low yield.
- Incineration cause carbon dioxide pollution.
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