Renewable Energy

Renewable energy

energy from a source that is not depleted when used

Biomass Definition

Energy that comes from materials from biotic matter.

bio

life

hydro

water

geo

earth

Sol

sun

Fossil

Ancient

Wind energy

captured by wind turbines which spin a generator

Hydroelectric

Energy made by flowing water

Geothermal

Heat energy deep from the earth

Solar

Energy from the sun’s rays

Biomass input

Biological matter

Biomass output

Electricity

Biofuel Input

biological matter

Biofuel output

liquid fuels

Biopower input

biological matter

biopower output

Liquid fuels, electricity, heat

Geothermal input

Heat energy from the earth

Geothermal output

Electricity

Hydroelectric damns input

Kinetic energy from moving water (Large Rivers)

Hydroelectric damns output

Electricity

Micro hydro input

Kinetic Energy from moving water (small rivers or streams)

Micro hydro output

Electricity

Passive Solar Heating input

Radiant energy from the sun

Passive solar heating output

Heat Energy

Active Solar heating input

Radiant energy from the sun

Active solar heating output

Heat energy

Photovoltaic input

radiant energy from the sun

Photovoltaic output

heat energy

Wind turbines input

kinetic energy from the wind

Wind turbines output

Electricity

Biomass disadvantages

• Not many places to build

• Harmful gases

Wind disadvantages

• Looks ugly

• need a lot to produce energy

Hydroelectric disadvantages

• Expensive & can harm ecosystems

• Dependent on rain/water

Geothermal disadvantages

• Greenhouse gases

• may not have enough space

Solar disadvantages

• Expensive

• Clouds get in the way

• Ugly looking

Biomass advantages

• Waste is everywhere

• cheap

Wind advantages

• No greenhouse gases

• free and will not run out

Hydroelectric advantages

• substance is free

• no greenhouse gases made

Geothermal advantages

• very few safety risks

• no greenhouse gases

• free and will not run out

Solar advantages

• FREE energy

• no greenhouse gases

• the sun will always be there