10:52 Jul 5, 2012 |
English language (monolingual) [PRO] Tech/Engineering - Energy / Power Generation / electric vehicles | |||||||
---|---|---|---|---|---|---|---|
|
| ||||||
| Selected response from: Colin Rowe Germany Local time: 15:44 | ||||||
Grading comment
|
SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
---|---|---|---|---|
4 +3 | clean energy [recharging systems] |
|
clean energy [recharging systems] Explanation: i.e. recharging systems that use clean energy (in this case solar power). -------------------------------------------------- Note added at 45 mins (2012-07-05 11:37:48 GMT) -------------------------------------------------- "Clean energy" refers here to energy generated without causing pollution (unlike electricity generated by burning coal, oil, etc.) – hence the use of high-efficiency solar panels. |
| |
Grading comment
| ||