Modern Net-Zero Energy Design

– Specs:

  • 2- unit townhouse project completed

  • (1) 2 bedroom unit with garage, (1) 3 bedroom unit

  • Site net-zero energy: 5.4 kW photovoltaic system per unit provides 100% of anticipated energy use

  • Designed and built to Passive House standards

  • Heat pump heating/cooling and water heating

  • Motorized exterior shades on west facade to mitigate overheating

  • – Completed: July 2020
    – Architect: Robert Hawthorne
    – Contractor: PDX Living, LLC

 

Performance

   - 5.4 kW PV system
   - Passive House Performance:
       - Specific heating demand: 4.74 kBTU/(ft^2yr)
       - Airtightness as tested: 0.18 ACH50

Gallery