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From HeatSpring, leading online learning platform on solar, heat pumps, building science, energy storage and more.

Heating with Biomass: It’s Not Just About the Boiler…

This article is a guest post by John Siegenthaler, Principal at Appropriate Designs and expert instructor with HeatSpring. John’s 10-week online course, Hydronic-Based Biomass Heating Systems, teaches engineers, heating contractors, and installers how to design and install highly-efficient biomass heating systems.Continue reading “Heating with Biomass: It’s Not Just About the Boiler…”

Gabrielle Rossetti Gabrielle Rossetti

Apply for HeatSpring’s Online Solar Startup Alley* Competition – Deadline: December 12th

*Startups include small businesses and new ventures with revenues of less than $1 million.  I’m really excited to announce our online solar startup competition. We created the competition because we noticed within our 6-week Solar Startup Accelerator that the single largestContinue reading “Apply for HeatSpring’s Online Solar Startup Alley* Competition – Deadline: December 12th”

Chris Williams Chris Williams

How Massachusett’s Alternative Energy Credit Prices Will Impact Heat Pump and Biomass Operating Costs

We passed the Massachusetts “Clean Heat Bill” in July 2014. The final bill number is S. 2214.  The bill created a production-based incentive, similar to solar PV renewable energy credits (SRECs), for renewable thermal technologies including solar thermal, air source heatContinue reading “How Massachusett’s Alternative Energy Credit Prices Will Impact Heat Pump and Biomass Operating Costs”

Chris Williams Chris Williams

Community Solar 101

There’s been a lot of buzz about community solar lately. While the amount of investment in community solar projects is a fraction of the investment of the entire solar industry, there are a few leaders who recognize the incredible potentialContinue reading “Community Solar 101”

Chris Williams Chris Williams

Air Barriers vs. Vapor Retarders vs. Drainage Planes: Learn Essential Building Science Specifics in 60-Minutes

Building science is complex. It takes time and experience to understand and integrate physics, chemistry, climatology, and ecology into building enclosures. Understanding the complex interplay of heat, air, and moisture flows within and across building enclosures— while paying attention to theContinue reading “Air Barriers vs. Vapor Retarders vs. Drainage Planes: Learn Essential Building Science Specifics in 60-Minutes”

Gabrielle Rossetti Gabrielle Rossetti

Understand the Key Grounding and Bonding Standards for Commercial Solar PV Projects in Less Than 30 Minutes

What are the differences between grounding and bonding in solar design? What are the most recent codes? Where are the codes headed? What are some of the changes that have happened? What does it mean for you and your installations? InContinue reading “Understand the Key Grounding and Bonding Standards for Commercial Solar PV Projects in Less Than 30 Minutes”

Gabrielle Rossetti Gabrielle Rossetti