The Solarwall is a black painted steel construction (though you can get them in other colors, if you are more interested in aesthetics, than heating) and there are some galvanized structural members that don't see the sun. There are drain holes in the bottom, as well as a lineal damper to take in outside air. I can't recall what sealants were used, but likely silicone around the mixing boxes connected from the collector surface to the interior ductwork. An upper linear vent with damper allowed the hot air to be dumped during non-heating months. The painted metal collector plate was perforated about every 2" so that the air pulled in through the holes were heated by this hot metal surface. The total collector area was sized based on the heat requirement, ie dT and mass flow.
This glazed system was the first of its kind, but we had installed a standard Solarwall without glazing prior to this which our client was thrilled with and had the 2 year pay back. Typically these are at least 1,000 sf, but it was very cost effective still in the 600 sf size.
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Michael Mayhew
President, Sr. Energy Engineer
Heliotropic Technologies
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Original Message:
Sent: 11-07-2022 08:35 AM
From: william fitch
Subject: Zoom Discussion - Comparing and contrasting the three most popular solar battery systems: Tesla, Enphase and SolarEdge
What was your glazing material?
And how did you deal with the expansion of the AL collector "plate" in the top to bottom direction?
How did you achieve seal for the AL, for the gap between AL and glazing?
Hot air walls are great!!!
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william fitch
Owner
www.WeAreSolar.com
Original Message:
Sent: 11-03-2022 12:08 PM
From: Michael Mayhew
Subject: Zoom Discussion - Comparing and contrasting the three most popular solar battery systems: Tesla, Enphase and SolarEdge
Here's a project with about 600 sf of a glazed Solar Wall solar hot air system that we installed at Wicked Joe Coffee Roasters a while back. It had about a 4 year simple payback, but it could have produce a better than 3 year SPP, had heat been needed longer that this coffee roaster's facility that had too much internal gain so only 3 months of heat/yr is needed. I sold one that produced a 2 years SPP, for a wood products manufacture and this displaced LPG for their paint & finish area. (Yes, we should have charged more for that system.)
Sent from Mail for Windows
Original Message:
Sent: 11/2/2022 12:37:00 PM
From: Ella Nielsen
Subject: RE: Zoom Discussion - Comparing and contrasting the three most popular solar battery systems: Tesla, Enphase and SolarEdge
This is amazing, thanks so much for sharing!
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Ella Nielsen
Membership & Engagement Manager
American Solar Energy Society
Boulder CO
Original Message:
Sent: 11-01-2022 10:12 AM
From: Jay Warmke
Subject: Zoom Discussion - Comparing and contrasting the three most popular solar battery systems: Tesla, Enphase and SolarEdge
In addition to recapping the week's solar news, we will compare and contrast the three most popular battery systems: Tesla, Enphase and SolarEdge
Each Tuesday at noon (Eastern)
solarPVtraining.com hosts a Zoom sessions for students (or anyone, really) interested in solar. Generally discussion focuses on technical questions, problems or troubleshooting - or just what is happening in solar that week.
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Jay Warmke
Owner
Blue Rock Station LLC
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