Linkedin debug : 401 : No LinkedIn account is associated with this user

What is considered the minimum threshold ROI in terms of years for energy saving upgrades/retrofits?

Steve.Mann's picture
Submitted by Steve.Mann(1544)
Site AdministratorBeta TesterSuper contributorFrequent contributorRegular contributorContributorMember
15 June, 2011 - 20:36
less than one year
0% (0 votes)
1 to 2 years
50% (1 vote)
2 to 4 years
50% (1 vote)
5 to 10 years
0% (0 votes)
more than 10 years
0% (0 votes)
Total votes: 2