A sustainable resource means it will last for ever, or for as long as humans renew the source.
At least as long as the Sun will shine - which is another 5 billion years or so.
Renewable energy will last as long as the sun continues to shine, as virtually all renewable energy sources are driven in some way by the sun.
Non renewable energy resources will end after a certain period of time. Because they cannot be reproduced.
as long as GOD wants them to!!
It can last a long, long time, so that would satisfy the definition of "renewable energy".
The more renewable energy we use the less non-renewable energy we use. And if we use less of it, it'll last longer.
You are right: In that sense the term "renewable energy" is a misnomer. What renewable energy simply means is that you can continue using it for a long, long time.
That follows directly from the definition of "renewable energy". A renewable energy is simply one that can be sustained in the long term.
The remaining life of non-renewable energy resources are constantly being revised due to new innovations in extraction and processing methods, and because of developments in renewable energy resources.
Renewable energy resources like sun, wind, hydro, tidal etc will last as long as the sun is still going.Non-renewable resources like fossil fuels (coal, oil and natural gas) are limited, and will eventually run out if we keep on burning them.
Basically atomic energy is a non renewable resource. The source of the energy is the supernova that exploded close to where earth was formed and the atomic energy has been running down ever since. However if man could harness nuclear fusion (which he has not done in the field of energy generation to date) then this too would be a non renewable resource but it would last man for as long as it mattered.
Solar energy is a renewable energy since you can always get energy from the sun and it will never run out, hence the word renewable. Although the sun will explode in around 4 or 5 billion years, solar energy is virtually renewable and will be available for a long, long time.
Chemical energy is both renewable and non-renewable in different situations. When burning fossile fuel, it is non-renewable. But it is renewable with flowers as long as their source remains available. So if the chemical the energy is being produced from is renewable, then the chemical energy will be too.
The sun is a renewable source of energy. Water is not a renewable source of energy. It is a renewable resource as long as the rain keeps on falling on the same place.
Geothermal energy is renewable, as the heat from the center of the earth will be available as long as we ever need it. This energy is the only renewable energy that does NOT come from the sun.
Technically, there is no such thing as "renewable energy" - all energy will be wasted eventually, in a way in which it can't be reused. The Sun, too, will run out of fuel eventually. The term "renewable energy" is used, however, for energy sources that can be used for a long, long time - and that is the case with the Sun.