Spend $4,000 now and SAVE $374 each year... ROI = 9.4%
Spend $1,200 now and SAVE $120 each year... ROI = 10%
If you have the opportunity to build a new office, expand an existing office, or transform another type of building into your office, look very carefully at the orientation to the sun. Southern orientation with properly sized overhangs can save you up to 40% of your heating and cooling costs.
Spend $1,145 now and SAVE $180 each year... ROI = 15.7%
Spend $200 now and SAVE $180 each year... ROI = 90%