Sol Lux Alpha!/view/85159/sol-lux-alpha

These four fine residences represent an evolution of design and convergence of technologies resulting in Carbon Neutral Living and Transportation. Off The Grid Design LLC, The Klein Family Trust, RG Architecture, and project partners are building the first multi-unit "Nanogrid" project to be offered to the residential market in the USA. The project, known as "Sol Lux Alpha" will be complete and commissioned by Sring of 2018. A new energy paradigm is dawning and this building and others similar are at the nexus of this technological shift. A connected grouping of similar renewable energy "net positive energy" buildings are designed to interconnect and begin forming Community Microgrids. "Sol Lux Alpha" has a 45 Kw bifacial BIPV array on a raised trellis over the roof-top lounge deck/garden space. Each of the 4 units has 41.5 kWh of energy str=orage and management from Project Partners TESLA Energy. The common areas including elevator  has 24 kWh of "Blue Ion" LiFePo4 Energy Storage frpm Project Partners Blue PLanet Energy. The buiolding is designed also with BIEV (building integrated electric vehicle) infrastructure with future-planned V2B (vehicle to building energy) architecture built in to be future ready. The "Passive House" Designed and Certified structure represents the pinnacle of ultra energy efficient design, allowing excess renewable energy generation beyond building needs for on site EV charging.

The convergence of technologies as planned and designed results in a new "Zero Carbon Living + Transportation" system. The savings in energy costs and $300/mo vehicle fuel costs PER UNIT can represent a $5,400 per year savings for each unit, even at today's low energy costs.

The building will save many tens of thousands in energy cost and can be an asset to the community and city during power disruptions or natural disaasters. When one factors in the societal cost benefit in ghg reductionsmove toward decarbonized societies. We are developing this as a new system of design/development for ourselves and others to follow, for people, for the planet, and for profit of all.

Contact us at; for more details on the project and how you can help take part in the global energy transition that is occurring.

Quick Facts


685 Florida St.
San Francisco, CA94110
United States
Building Type Multi Family Nanogrid N+E Structure
Project Type Net Exporter
Basis of Performance Claim Modeled, Zero Energy Program,
Bedrooms 3
Conditioned Floor Area 7 008

Energy Summary

Energy Data Type
Renewable Energy System Type(s)

DOE ZNE Ready Home Program, Phius+, Energy Star, EPA WaterSense

Annual renewable energy generated

Envelope and Mechanicals

Subslab assembly
Foundation wall assembly
Above grade wall assembly
Door Assembly
Air Changes per hour, ACH50

Project Team:

Other Team Members:


DOE ZNE Ready Home Program, Phius+, Energy Star, EPA WaterSense



Completion Date: Tuesday, April 10, 2018


New Passive Solar , PHIUS+ Source Zero Certification. 100% site based renewable energy "Nanogrid" technology provided by TESLA ENERGY, BLUE PLANET ENERGY, SUNPREME, and OFF THE GRID DESIGN. Project is designed as a CARBON NEUTRAL LIVING+TRANSPORTATION system. No fossil fuels on site. All electric ultra high efficiency building.

Type of Construction New,
Number of buildings 1
Floor area of each building 6
Bedrooms 3
Stories 6
Conditioned Building Volume 66 576
Conditioned Floor Area 7 008

Location and Climate Details

Multi Family Nanogrid N+E Structure

685 Florida St.
San Francisco, CA94110
United States
Location Type Urban
Climate Region Zone 3
Köppen Climate Type
Lat. / Long. POINT (-95.712891 37.09024)
Elevation 16
Solar Insolation
Annual CDD and Base Temp |
Annual HDD and Base Temp |


Site Conditions:

previously undeveloped land,

Site Description:

25' x 100' east-West longitudinal lot. Urban Infill

Monthly Energy Data and Utilities

Energy Data Type: Modeled, Zero Energy Program,

Electric Utility:

Gas Utility:

Renewables and Energy Balance

Renewable Energy Sources:

Renewable Energy System Description & Details:

Annual renewable energy generated
Annual Renewable Energy Generated Data Type
Power Rating
Renewable Energy System Type(s)
Source of Annual Production Data

Walls and Roof

Subslab assembly
Subslab R-value
Slab edge assembly
Slab edge R-value
Foundation wall assembly
Foundation wall R-value
Above grade wall assembly
Above grade wall R-value
Cathedral ceiling assembly
Cathedral ceiling R-value

Windows and Doors

Window Assembly:

Door Assembly:

Average window U-factor
Door U-Factor
Door Area

Mechanical Systems

Space cooling - Manufacturer & Model
Space heating - Manufacturer & Model
Domestic hot water - Manufacturer & Model
Domestic hot water - capacity
Ventilation - Manufacturer & Model
Lighting Manufacturer and Model
Lighting Efficiency
Mechanical Equipment Installation Details and Comments


Air Changes per hour, ACH50
Air Changes per hour, CFM50

General Process

Design for Adaptability:

Software Tools

Software Tools:

General modeling information:

Lessons Learned

Outcome of Project Goals:


Rebates and Financial Incentives

Federal incentives
Local incentives
State incentives
Utility incentives
Other incentives