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

“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 theContinue 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″

Brian Hayden Brian Hayden

HS TV Ep 8: 1/2 the Drilling Depth, 1/3 the Footprint, SCW vs. Closed Loop Geothermal Systems

Standing column well geothermal projects have significant advantages over closed geothermal projects in certain circumstances. Standing column wells typically need half the amount of drilling then traditional closed systems, because they can transfer heat so much faster. Also, they beContinue reading “HS TV Ep 8: 1/2 the Drilling Depth, 1/3 the Footprint, SCW vs. Closed Loop Geothermal Systems”

Chris Williams Chris Williams

Q+A with Solar Thermal Expert Bob Ramlow: Hard Water Issues, PV Powered Solar Thermal and Air Venting

Bob Ramlow answers student questions about solar thermal. He tackles hard water, PV powered solar thermal systems, and best practices for air vent installations. Is hard water an issue with closed loop solar thermal systems? Are solar PV powered solar thermalContinue reading “Q+A with Solar Thermal Expert Bob Ramlow: Hard Water Issues, PV Powered Solar Thermal and Air Venting”

Chris Williams Chris Williams