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

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

Free 65 Minute Lecture on Biomass Thermal Storage + Free Invitation to Maine Alternative Energy Expo 2014

Interphase Energy, a Maine-based leader in supplying central pellet heating equipment throughout North America, is hosting Alternative Energy Expo 2014 at their Portland, Maine facility this Friday, September 12th, 2014 from 2:00 – 8:00 p.m. EDT. Free to the public, theContinue reading “Free 65 Minute Lecture on Biomass Thermal Storage + Free Invitation to Maine Alternative Energy Expo 2014”

Gabrielle Rossetti Gabrielle Rossetti

Two Free Tools: ASHRAE Standards 55 and 62.2 Calculators

Registered engineering technologist and expert HeatSpring instructor Robert Bean has developed two calculators to help designers meet ASHRAE Standards 55 and 62.2: “Thermal Environmental Conditions for Human Occupancy” and “Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings.” ConsideredContinue reading “Two Free Tools: ASHRAE Standards 55 and 62.2 Calculators”

Gabrielle Rossetti Gabrielle Rossetti

Why Performance and Not Price Is the Most Important Factor In Finding an Investor or Buyer for Your Solar Projects

Question or comments? If you’re a solar developer or investor and have a story to share that relates to this article or a question about the content, please leave it in the comment section below the article.  This is aContinue reading “Why Performance and Not Price Is the Most Important Factor In Finding an Investor or Buyer for Your Solar Projects”

Chris Williams Chris Williams

AC Coupling – How to Cost Effectively Add Battery Back-up to Existing Grid-Tied Solar PV systems

This is a guest article by Chris LaForge. Chris is teaching an in-depth 6-week technical training on designing battery based solar PV systems that starts in September. You can read the full description and get a limited-time discount here. IfContinue reading “AC Coupling – How to Cost Effectively Add Battery Back-up to Existing Grid-Tied Solar PV systems”

Chris Williams Chris Williams

Three Keys to Developing Bankable Solar Projects – Lessons from Developing 150 MW+ of Solar Projects

Thanks to Chris Lord and Keith Cronin for providing all of the insights in this article. Chris and Keith teach our Solar Executive MBA course (the next session starts on September 15th). Together, they have advised investors, owners, and otherContinue reading “Three Keys to Developing Bankable Solar Projects – Lessons from Developing 150 MW+ of Solar Projects”

Chris Williams Chris Williams

Solar Technology Tour: Differentiating Solar Heating Technologies Across North America

Take a solar heating technology tour of several different solar installations across North America and become better acquainted with solar technologies used in residential and commercial heating applications across the continent in this 40-minute free video lesson. Your tour guide? VaughanContinue reading “Solar Technology Tour: Differentiating Solar Heating Technologies Across North America”

Gabrielle Rossetti Gabrielle Rossetti