HYDROPOWER

Untitled Slide

• Does not produce greenhouse gases
• Renewable resource
• Less dependency on fossil fuels
• Energy can be stored easily
• Supply can adapt quickly to demand

Untitled Slide

• Represents 19% of all electricity production
• Represents 19% of all electricity production
• Collects water that can be used for drinking or irrigation
• Collects water that can be used for drinking or irrigation
• Dams produce electricity and conserve warer
• Dams produce electricity and conserve water
• Energy can be created 24/7 if water never runs dry

* Creates reservoirs that offer several recreational opportunities such as fishing, swimming, and boating for the public

* Does not "use" water, all water is returned to its source of origin

* In the next 25 years the production is expected to increase by 3.1% each year

* Switzerland and New Zealand get more than half of their electricity from hydropower

* Produced in 150 countries

* Electricity can be produced quickly

ADVANTAGES (SOLAR)

• Lots of supplies in sunny regions
• Non-polluting/clean
• Free source of energy
• Solar panels are easy to install
• Many possibilities for future uses

DISADVANTAGES (SOLAR)

• Limited supplies in cloudy regions
• Fossil fuels used to run some solar devices
• Does not work at night
• Systems can be expensive
• Low efficiency compared to other sources

ADVANTAGES (WIND)

• Renewable
• Non-polluting/clean
• Free source
• Turbines don't use lot of space
• Cost has gone down

DISADVANTAGES (WIND)

• Noisy
• Large wind farms are needed to produce electricity for lots of people
• Some think turbines are ugly and ruin beautiful scenery
• Wind has to blow steadily to be successful
• Electricity cannot be stored easily

ADVANTAGES (FOSSIL FUELS)

• Relatively cheap
• Large supplies are still available
• Most reliable source of energy
• Large amounts are produced by a single station
• Income from sale of fuels can help a country's economy

DISADVANTAGES (FOSSIL FUELS)

• Non-renewable
• Spills happen a lot
• More dangerous as mines get deeper and oil rigs go further
• Will become more expensive to extract
• Pollutes the air/gives greenhouse gases and CO2

ADVANTAGES (BIOMASS)

• Renewable
• Reduces amount of garbage in landfills
• Reduces dependency om fossil fuels
• Gives farmers steady market for their crops
• Plants grow back and animal dung can be found almost anywhere

DISADVANTAGES (bIOMASS)

• Limited amounts of energy
• Collection is time consuming
• Expensive
• Crops are being used for energy and not food
• Increases methane gas (from burning human & animal waste)

ADVANTAGES (GEOTHERMAL)

• Power plants work during the day and night
• Reduces dependency on fossil fuels
• Renewable
• Does not depend on weather to produce electricity
• Clean and safe to surrounding environment

DISADVANTAGES (GEOTHERMAL)

• Hot springs eventually dry up
• Depends on location
• Technology is expensive
• Hot springs can shut off and stay that way for years
• The energy cannot be moved easily