PV Solar installed Dec 2011. Another profile (same house): Energy audit completed June 2012 with $2,454 rebate from efficiency vermont, siding and re-insulation completed September 2012.
- Henry Bonges
- 5 Jackson Ln, Milton, VT 05468
- 1,950 sq ft
- Energy need met:
- 100% or more of electricity
- Deep energy retrofit
- Zero net energy
- Event Participation:
- NESEA Green Buildings Open House 2012 Host
- NESEA Green Buildings Open House 2013 Host
- Solar PV
- January 2011
- Size of System:
- 7.5 kW
- To generate electricity
- Gross Cost of System:
- Value of Rebates:
- Value of Tax Credits:
- Net Cost of System:
- Annual Savings:
- Annual Revenue:
- Own or Lease:
- Cash Purchase
7.5-Kilowatt Solar Electric Power System: (30) Solar PV Modules, SolarWorld 255-Watt ea. (2) Inverters SolarEdge SE3800US & SE5000US with Module MPPT and Data Monitoring (30) SolarEdge PowerBox DC Power Optimizers, SB250-AOB AC & DC Disconnect Switches
Realized savings are higher than expected, projecting closer to 9MWh vs the 7.4 spec'd. I realize PV solar will lose some efficiency over time, and I have not done any insolation modeling to see if this is "just a good year". I will at the end of the year. We also changed the oven and range from propane to electric. The induction stove is fantastic. I may expand the system it for an electric car if i can do it economically.
In winter I sometimes snow rake the panels as the roof has a shallow pitch. The snow has naturally come off better than expected for that pitch.
Efficiency or Sustainability Improvements:
In another profile (same house): Energy audit and work completed June 2012 with $2,454 rebate from efficiency vermont. House (built in 1984) resided, which gave us the opportunity to seal the insulation bays and change insulation to StoneWool. Completed September 2012.
Economics of saved energy dollars. Refinishing the house on a "permanent" basis, no major work will be needed for a loooong time, environmental concerns.
Experience with Installer:
Single-Family Residence|Solar PV
Other|Solar Hot Water