The Infinity Dimension

Narrative: 

 

The building is sited for climate-responsive, passive solar design, enhancing passive survivability. A combination of cool roof covered in solar panels, green roof, and blown-in cellulose insulation complete an efficient building shell, exceeding California Title 24 by 42%. This beats the EUI of a typical single-family home by 94% and meets the 90% target EUI of the 2030 Challenge. The building envelope consists of R-21 blown-in cellulose insulation in the walls and R-30 in the roof, along with double-glazed low-E windows. Shading is provided for the building and courtyard space through the large overhangs. These features significantly reduce (and nearly eliminate) the reliance on fossil fuels. All rooms are designed with windows on opposite walls to induce natural cross-ventilation and abundant natural light.

In addition to the passive design, the building has no mechanical cooling system. As a result, heating and cooling loads are reduced by over 75%. Energy Star appliances, top of the line solar water heaters, and energy efficient lighting are also significant sources of savings. Other than the use of natural gas, 100% of the building's energy is generated on site with the 12-kW photovoltaic solar system.

Total EUI = 7.77 kBtu/sf/yr
Net EUI = 4.54 kBtu/sf/yr (3.23 kBtu/sf/yr from photovoltaic solar)
Percent Reduction from National Average EUI for SFR (76.6) = 94.0%

 

 

Metrics:

 

Total EUI: 

8kBtu/sf/yr

Net EUI: 

5kBtu/sf/yr

 

Percent Reduction from National Average EUI for Building Type: 

94%

 

Home Energy Rating (HERS) Index: 

62

 

Lighting Power Density: 

0.75watts/sf