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Evaluation of Renewables (Solar (+ (Clean form of energy, Infinite…
Evaluation of Renewables
Solar
+
Clean form of energy
Infinite resource
Panels can be used locally e.g. on top of a house
Can be used to heat water as well as generating electricity
-
Expensive to make solar panels
Sun does not shine all the time
Can't be used at night
Hard to store surplus energy
Wind
+
Clean form of energy
Infinite resource
Can be used on a local scale e.g. in a garden
-
Visual pollution (unattractive)
Noise pollution
Wind is unreliable
hard to store surplus energy
Tidal
+
Clean form of energy
Infinite resource
Good for island countries
-
Can block important shipping routes
May interfere with animals e.g. sea otters or seals
Limited number of sites
Useless for landlocked countries
High start up costs
Wave
+
Clean
Infinite resource
Good for island countries
-
Shipping routes can get blocked and interfere with animals
Not suitable for landlocked countries
Strength of waves can vary
May be damaged by tropical storms
Geothermal
+
Clean infinite source
Can be used to heat water as well as generate electricity
Not dependent on weather
-
Limited number of suitable locations
An areas tectonic activity may change making it redundant or less efficient
Biomass
+
Renewable as long as people replant crops
Cheap and resources can be grown locally
-
Can still release GHGs
Areas can be deforested to grow crops for energy generation
Can lead to an increase in food prices
HEP
+
Clean and infinite as long as rivers are managed properly
Building dams can also prevent flooding
Reservoir behind dam can be a store of water
-
Limited number of suitable rivers
Reservoirs may force resettlement
Can affect the ecosystem - e.g. fish may be dependent on water levels and velocity