Sustainable Technology Institute

Sustainable Technology Institute

Sustainable Technology Institute

About Us

Training Center

Sustainable Technology Institute offers workforce training in the fields of solar energy and building energy efficiency. We offer courses that prepare students for exams administered by the North American Board of Energy Practitioners (NABCEP) and Building Performance Institute (BPI).

Zak Dowell

Zak holds a Dual Master of Science degree in Technology with concentrations in Building Science and Environmental Design. He holds a VA Class A license, and has been adding sustainable design elements to his work for many years.

Wil Caton

Wil is a long time sustainable construction and energy efficiency expert and is a certified BPI Building Analyst. Before starting STI, Wil worked as the Lead Project Manager for Urban Grid Solar.

Sustainable Services

Residential Solar

We offer installations for grid-tied, battery based, and hybrid systems. PV system prices have dropped dramatically in the last two years. Solar installations used to be only about living “off-grid” or just liking the idea of living more sustainably, but this is no longer the case.

Commercial Solar

Installing solar panels on your business is currently an excellent investment with a fast return on investment (ROI). With prices at an all-time low, we can honestly say that choosing to invest in solar can beat an investment in mutual funds or even the stock market.

Solar Thermal

Installation of a solar thermal water heating system can reduce your energy bills significantly. We can design an appropriate system based upon the hot water needs of your family.


Our sustainability experts can come to you and offer professional advice that is personalized to each individual’s situation.

Insulation & Air Sealing

STI is equipped to provide a turnkey system for insulation and air sealing in Commercial and Residential Buildings.

Contact us

Contact us today for a free estimate.

Free Estimate

“What our Clients are Saying”

Medallion Pools- Dear Mr. Caton, I just wanted to let you know about our recent experience with your company. I know usually the previous sentence is followed by a laundry list of complaints but that is definitely not the case here. Every person I spoke with was friendly and helpful. Your on-site supervisor was very

Recent News

NABCEP Training

NABCEP Training

Here at STI, we are installing solar and we are training others. Our NABCEP Entry level offerings are very popular here at our central Virginia headquarters. Being located in Richmond City’s Historic Museum District, we are very near I64 and I95. We have folks come in from for training from all…

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SolarEdge “StorEdge” Inverter and the Tesla Powerwall

SolarEdge “StorEdge” Inverter and the Tesla Powerwall

The Sustainable Technology Institute just installed Central Virginia’s first “StorEdge” inverter for a client who lives on Lake Anna near Fredericksburg, Virginia. The 10kw install will provide this large home with a majority of its energy needs. And when this client’s Tesla battery pack…

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