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LATEST ARTICLES

1May, 2015

Passive House Design: An Investment in the Future

This is a guest post by Mike Duclos. He is a Certified Passive House Consultant and principal and founder of DEAP Energy Group, a consultancy providing a wide variety of deep energy retrofit, zero net energy, and Passive House related services.

This article is intended for […]

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27Apr, 2015

[Discussion Topic] 3+ Ways to Replace Spray Foam Insulation in Your Basement

Here’s a discussion feed from one of our best-selling courses, Zero Net Energy Homes. In the discussion, one of our students asks Marc Rosenbaum for foam-free ways to retrofit her New England basement.

Here are the alternatives to spray foam discussed below:

Expanded cork board insulation
Rigid rock […]

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1Apr, 2015

How I Failed to Attract Venture Capital and What It Says About HeatSpring

I spent the summer of 2014 raising money. More accurately, I spent the summer of 2014 pitching investors to help our company grow more quickly, failed, and cried about it. This is the story of what happened and what it says about our values and […]

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1Apr, 2015

The Top Challenges with Technical Qualification for Commercial Solar Projects

This article will provide a snapshot of the current technical challenges that engineers and project managers face with the technical qualification of solar projects.

Project qualification is a critical part of the commercial solar sales process. It’s where sales, technical skills, and finance all overlap.

From the […]

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30Mar, 2015

Free Solar Tool: You Need to Teach Homeowners How to Compare Proposals

Residential solar sales still needs a lot of work, especially around the presentation and education of the information in proposals given to homeowners. Fortunately, we can make this better by reducing the amount of paperwork and actually helping homeowners make comparisons between proposals.
I have a […]

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12Mar, 2015

NABCEP Certification: How To Get It, What It’s Worth

This is a presentation I gave this week in Cleveland at the ElectroExpo. The audience was pretty small, just fifteen folks attended, so it turned into an intimate conversation rather than a formal presentation. An honest discussion about business, renewable energy, and education is right […]

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6Mar, 2015

SpaceNews, Charles Miller, and the Incredible Commercial Space Course

This week SpaceNews signed on as our media partner for the next round of the “Commercial Space Executive Leadership” course developed in partnership with the AIAA. I don’t like hyperbole or excessive hype, even when I talk about work we’re doing at HeatSpring, so I’d like […]

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3Mar, 2015

50 Question NABCEP Practice Test [2015 Edition]

Passing the NABCEP Installer Exam is notoriously hard. On April 11th (about a month from now) the next round of applicants will take the exam. Some will pass (40-50% is the unofficial numbers I’ve heard), some will fail, and all will struggle. NABCEP’s role in […]

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28Feb, 2015

Solar Leases vs. Solar Loans vs. Utility Rates vs. Cash Purchase

(Used with permission. Source: http://cinnamonsolar.com/about-us/lease-borrow-or-buy/)

The graph above is one of my favorites about the residential solar industry. It explains exactly why residential solar leasing is dying.

It was created by Barry Cinnamon from Cinnamon Solar as a sales tool for his residential solar business in California. […]

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27Feb, 2015

The #1 Online Resource for Heating Questions: HeatingHelp.com

Looking for an answer to all of your heating questions? Ask Dan Holohan. He’s the founder of the #1 online resource for heating questions: HeatingHelp.com. If Dan doesn’t know the answer, “The Wall” will (read below to learn more). I don’t remember how I stumbled across […]

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