Net positive energy with day to day transportation for 5 years running

Project Team

This projects describes the steps taken to retrofit an exsiting single family home in Cupertino California to be net energy positive including daily transportation needs. The house has maintained net energy positive status for 5 years straight showing the sustainability of the approach. No major sacrifices were made in the comfort and convinienece of the household members in the process. 

Quick Facts


Location Cupertino, California
Building Type Single-family residence
Project Type Net Exporter
Basis of Performance Claim Verified
Bedrooms 4
Bathrooms 3.0
Conditioned Floor Area 2,170 sq ft

Energy Summary

Energy Data Type Verified
Renewable Energy System Type(s) Photovoltaics
Net electricity usage (purchased) -1,500 kWh/year
Annual renewable energy generated 15,500 kWh/year

Envelope and Mechanicals