1. Save energy before making energy
2. Deep retrofitting is remodeling
3. Retrofit when replacing
4. Fix the envelope bottom-up, insulate outside-in, air seal inside-out
5. Moisture is mayhem
6. Be active on passive opportunities
7. Right-size and refresh HVAC
8. Renewable energy is a financial investment
9. Test-in, test-out, test often
10. Do the numbers, give weight to the intangibles
© Green Energy Systems 2011
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