Solar Thermal

Solar thermal systems use the sun to heat hot water. According to a recent SEPA study, the residential solar thermal market is a $123 billion dollar market. The commercial market is expected to grow by 20% per year.

Free Tool: Solar Thermal Design & Installation 101 (PDF)
Free Tool: Vaughan Woodruff’s Solar Heating Basics Guide (PDF)

Free Lecture: “The History of Solar Thermal in the United States” with Bob Ramlow

This is a fun 40-minute lecture that provides historical context for where solar hot water – solar thermal – is today. Bob also shares some insights about which types of customers are the best fit for solar hot water, and some resources to learn more. Register for the free lecture here.
Nobody has been more influential […]

Using Solar to Heat – Net Metering Makes a Difference

In the article below, Vaughan Woodruff, Expert Instructor, Solar Approaches to Radiant Heating, outlines a response to a student who recently asked a question regarding the use of solar electricity for heating and how advances in battery storage might impact the suitability of using solar electricity to provide heating. The student asks:
“Even though grid-tied electric battery storage is less […]

3 Reasons Your PV System Load Profile is Overinflated and How to Fix It

The article below is a discussion from our course, Batteries in Solar PV Systems, led by Christopher LaForge. Christopher LaForge is the CEO of Great Northern Solar and a NABCEP certified photovoltaic installer. He has been designing, specifying, and installing systems since 1988.


The Energy Master Program is a great tool to work out a design for […]

6,500+ Word Guide to Solar Water Heater Installation Best Practices

This is a guest post from Bob Ramlow, solar thermal expert and the teacher of our Solar Thermal Boot Camp. Bob’s next solar thermal training starts on September 30th. If you need to know exactly how to design, install and quote solar water heater system, this class if for you. Click here to sign up.

I asked Bob to write an article on best practices for commissioning solar thermal systems, but he quickly realized without proper understanding of installation best practices, commissioning doesn’t matter too much.


Best in Class Solar Thermal Monitoring: 50% Cheaper, 1/3 the Install time, No Moving Parts = Super Reliable

The Ohm by Sunnovations is a category killing, best in class, real time monitoring solution for residential solar thermal systems. If you think you’ve already looked into solar thermal monitoring and it’s too expensive, too complex and expensive to install, and not reliable enough, think again.

I’m constantly looking for technologies that will reduce risk for […]