Heat Recovery Ventilation Considerations in Zero Net Energy Homes Marc Rosenbaum discusses heat recovery ventilation considerations for zero net energy homes on the Zero Net Energy Homes course discussion board… Exhaust-only ventilation home health concerns Student 1: Do you know of any potential health impacts from living in a depressurized space–… Continue reading “Heat Recovery Ventilation Considerations in Zero Net Energy Homes”
Tour Solar Technologies Without Leaving Your Home We’ll tour solar technologies used in both commercial and residential applications across North America in this free, 42-minute lecture. Learning Objectives: 1. Describe the visual appearance of specific solar technologies 2. Differentiate between solar technologies 3. Identify specific applications for solar… Continue reading “Tour Solar Technologies Without Leaving Your Home”
Site Assessment for Solar Hot Water Heating Systems Without a proper site assessment, you may be putting your solar thermal system at risk for poor performance… This piece originally appeared in Home Power Magazine | Vaughan Woodruff, 2/2014 It is a fairly common occurrence for a solar professional to hear… Continue reading “Site Assessment for Solar Hot Water Heating Systems”
Six Drainback Questions for Radiant Heating Pros to Consider Vaughan Woodruff answers student questions regarding drainback systems on the Solar Approaches to Radiant Heating discussion board… Student 1: I have several questions on drainback systems for you… Question #1 When the solar storage tank has satisfied and the system goes… Continue reading “Six Drainback Questions for Radiant Heating Pros to Consider”
Download the Free Solar Heating Basics Guide Download the Free Solar Heating Basics Guide Used in Vaughan Woodruff’s Solar Approaches to Radiant Heating course. Solar Approaches to Radiant Heating is for serious professionals with relevant experience. You’ll learn the latest, most advanced concepts for integrating solar with radiant heating systems.… Continue reading “Download the Free Solar Heating Basics Guide”
Two New Free Lectures on Healthier Homes and Buildings Enroll in Two New Free Lectures on Healthier Homes and Buildings Carbon Monoxide: What We Do Not Know Can Hurt Us‘ and ‘Green, Healthy & Profitable Buildings and Homes‘ In his free ‘Carbon Monoxide: What We Do Not Know Can Hurt… Continue reading “Two New Free Lectures on Healthier Homes and Buildings”
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… Continue reading “Free Lecture: “The History of Solar Thermal in the United States” with Bob Ramlow”
Five Questions about Hydronic Heat Sources On the Mastering Hydronic System Design Course discussion board with expert instructor John Siegenthaler… Takeaways: Although closely spaced tees are great for hydraulic separation, a modern hydraulic separator provides air and dirt separation in addition to hydraulic separation. When considering whether to use… Continue reading “Five Questions about Hydronic Heat Sources”
Renewable Energy Lessons From Harvard Business School’s Study on U.S. Competitiveness On November 15th, Harvard Business School hosted a discussion on ways companies and other stakeholders can boost U.S. competitiveness. It took place at The Henry Ford in Detroit, and the case discussion was about the rise, fall, and rise of… Continue reading “Renewable Energy Lessons From Harvard Business School’s Study on U.S. Competitiveness”
Made in Detroit: Do you Have a Customer with a Thermal Problem? A hybrid solar panel made in Detroit using automotive components, with investment from an EPC contractor in Florida. Interesting. Interesting enough that I spent two hours this week along with other members of the Great Lakes Renewable Energy Association touring… Continue reading “Made in Detroit: Do you Have a Customer with a Thermal Problem?”
Alumni Profile: Virgil Bellini & the Growth of California Solar Thermal California Solar Thermal (CST) is a San Diego-based solar installation business on pace to do 42 solar thermal projects this year. According to California Solar Statistics data they are the #1 solar thermal company in southern California, and are currently… Continue reading “Alumni Profile: Virgil Bellini & the Growth of California Solar Thermal”
[Photos] Repairing a 30 Year Old Solar Thermal System in NYC Last week, I spent a day repairing a solar thermal system that has been operating for more then 30 years in NYC. I just wanted to share a few pictures and points because it’s super cool. The system was installed… Continue reading “[Photos] Repairing a 30 Year Old Solar Thermal System in NYC”
Keeping Vermont on the Cutting Edge of Clean Energy and How You Can Get Involved Vermont has long been on the cutting edge of renewable energy and energy efficiency. They like to get stuff done, from solar permitting to efficiency and biomass. Two weeks ago, I spoke with executive director of Renewable Energy Vermont, Gabrielle… Continue reading “Keeping Vermont on the Cutting Edge of Clean Energy and How You Can Get Involved”
Guide to Bridge Financing For Solar EPC Contractors Over the past month, I’ve seen a pick up in the amount of companies that are offering ‘bridge financing’ to small and middle size solar PV contractors. So, I thought I would put together a short post and a free… Continue reading “Guide to Bridge Financing For Solar EPC Contractors”
“What’s the Most Efficient?” Geo VS Solar Thermal VS Solar PV I’m doing some sales consulting work in NYC, and there’s one question I’m getting a lot from property owners: “What is the most efficient renewable energy technology?” In the city, they are mainly speaking of solar PV vs solar thermal,… Continue reading ““What’s the Most Efficient?” Geo VS Solar Thermal VS Solar PV”
Finance 101 for Solar Thermal Pros In this article, I’ll go through the basic step-by-step process of how to evaluate, understand and communicate the financial benefits of investing in a solar thermal system. The analysis will be on the client side, but obviously it’s critical for… Continue reading “Finance 101 for Solar Thermal Pros”
Detailed 2012 SREC Market Update: NJ, MA, PA, CT, IL, DC, MD 7 Months ago we did an SREC 101 Episode for HeatSpring TV. The goal of the first interview was simple: to provide basic information on what SRECs are, the state of the current market, and what installers should know about… Continue reading “Detailed 2012 SREC Market Update: NJ, MA, PA, CT, IL, DC, MD”
Finance 101 for Renewable Energy Professionals Understanding finance is required to sell renewable energy projects. It’s needed to communicate the value of both residential and commercial projects, and for all types of technologies: solar PV, solar hot water, and geothermal heat pumps. The reason financial metrics are… Continue reading “Finance 101 for Renewable Energy Professionals”
“If you can’t install solar at $3.45/watt, you’re going out of business.” Straight Talk on Solar with Jigar Shah at NESEA 2012 Jigar Shah was my favorite presenter at this year’s Building Energy Conference. Mr. Shah founded SunEdison in 2003 and sold it five years later for $200 million. Here are some quotes he offered up in the “Energy Subsidies and the… Continue reading ““If you can’t install solar at $3.45/watt, you’re going out of business.” Straight Talk on Solar with Jigar Shah at NESEA 2012″
[Video] How to Select Solar Hot Water Components and System Types In this video, author and ISPQ Certified Master Trainer Bob Ramlow provides a detailed outline of common components found in solar thermal systems, and the four most common types of systems.