Episode 66 : Renewable Energy Technologies
Currently, this is the largest source of renewable energy.
However, much of this is low-technology uses in developing countries. Presumably usage of these fuels will fall as countries grow.
Other fuels include things such as ethanol.
Is there enough farmland to grow the needed feedstocks as well as supplying necessary food supply?
Recent concerns over corn prices is an example here
Used for 16% of world electricity production.
Does not require technological breakthroughs.
However, political acceptance is an issue.
Small hydro is cost competitive
Costs of wind fell by a factor of four between 1981-1999
Wind is now competitive in favorable locations.
Now about 5-8 cents/kWh
Competitive with traditional fuels with a $25/ton CO2 tax
Study shows wind is competitive at $38/ton CO2 near Chicago, and could be situated further away with a price of $76/ton CO2.
Distance from center decreases intermittency, but increases transmission losses.
Because wind is intermittent, storage is an issue.
For instance, excess power could be used to compress air in a reservoir as storage.
Currently feasible at about $93/ton
Denmark and Norway work in tandem to provide power.
When winds are favorable, Denmark exports wind energy to Norway. When not, Norway exports hydropower to Denmark.
SAJJAD KHUDHUR ABBAS
Ceo , Founder & Head of SHacademy
Chemical Engineering , Al-Muthanna University, Iraq
Oil & Gas Safety and Health Professional – OSHACADEMY
Trainer of Trainers (TOT) - Canadian Center of Human