Skip to main content

Solar Heating & Cooling Case Study - San Jose ADU

Share
San Jose ADU.pdf (563.03 KB)

In December 2019, SunDrum Solar and Freedom Solar  commissioned a 10.7kW hybrid solar PV-T system on an  Accessory Dwelling Unit (ADU) being built by Acton ADU in San  Jose, CA. The solar system supplies 100% of the electrical,  space heating, space cooling, and DHW for the entire home.  The system includes 670 sq. ft. of Insol Corp Infinite R 23C  phase change material installed in the ceilings, which serves as  thermal storage for the space heating and cooling. SunDrum  Solar’s thermal collectors are attached to the back side of  commercial PV panels allowing this area to collect both  electrical and thermal energy. The dramatic improvement in  solar energy collection increases useful energy to the client,  which is extremely valuable for homes with limited roof space.  In this case a standard PV array would only produce 6.5MWh  and the client would need to purchase energy from the grid. By  converting the PV panels to hybrid modules 14.5MWh of energy  is produced allowing the client to be net zero and reducing their  25yr cost of ownership to $9,000 vs a traditional system’s $113,000. Enablement of these systems in the small home  market will make homes more affordable and improve home  ownership. 

 

Resource Type

Browse Resources by Related Topics:

Related Resources

Thursday, May 06, 2021

National Solar Jobs Census 2020

Since 2010, the National Solar Jobs Census has been the definitive measure of solar energy industry employment in the United States, charting the growth of the solar workforce alongside the rise of solar energy as a major contributor to the U.S. energy supply and economy as a whole.

Read More
Thursday, Apr 29, 2021

Solar Supply Chain Traceability Protocol

The ability to trace the provenance of products and components through the value chain, from input materials to the finished product, is necessary and important for a variety of reasons, including sustainability, environment, health, and safety (EHS), and social responsibility. From upholding corporate social responsibility principles to quality assurance and environmental performance, robust product traceability provides openness and transparency. 

Read More
Thursday, Apr 29, 2021

Solar Equipment Buyers' Guide for Supply Chain Traceability

The SEIA Traceability Protocol (Protocol) lays out a series of steps that a manufacturer can take to track the origin of material inputs through specified stage(s) of production, processing, and distribution, e.g., the factory location and production date of polysilicon used in a finished solar module. The Protocol aims at helping capture and making transparently available to stakeholders which companies and facilities participated in the manufacturing of renewable energy products on the market.

Read More