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Apr 3, 20161 min read
When does the PV bypass diode kick in with a partially shaded solar cell?
From HeatSpring.com PV Boot Camp Discussion Board Q: Can you go into more detail on what happens when a solar cell is partially shaded?...
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Apr 3, 20162 min read
Solar PV Snow Removal... Is it worth the investment?
From HeatSpring.com PV Boot Camp Discussion Board Q: Would it ever be worth it to remove snow from a large solar field in New England? Or...
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Apr 3, 20161 min read
NABCEP Resource Guide Battery Question Explanation Hot and Cold Lead-Acid Battery Charging
From HeatSpring Advanced PV Course Discussion Board Q: Hi Sean, NABCEP includes the following practice question in the NABCEP PV...
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Apr 2, 20161 min read
What to bring to the NABCEP PVIP exam
NABCEP PV Installation Professional Exam Prep Course Discussion Board from HeatSpring Course Q: I understand we will be give a copy of...
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Apr 2, 20161 min read
Bypass Diodes and Shading
Review of 40 hour Adv PV Course on HeatSpring.com Q: Sean, Why are all three bypass diodes affected by shading on the short edge of the...
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Mar 30, 20162 min read
How often to equalize batteries (flooded lead-acid)
From HeatSpring.com PV Boot Camp Discussion Board Q: How often should batteries be equalized? I installed a few systems on a...
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Mar 30, 20161 min read
A BIPV future?
From HeatSpring.com PV Boot Camp Discussion Board Q: It seems that even-though BIPV is more expensive than conventional silicon modules,...
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Mar 30, 20161 min read
Tesla Powerwalls in the cold
From HeatSpring.com PV Boot Camp Discussion Board Q: Are power wall battery systems affected by cold in northeastern areas or are they...
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Mar 30, 20161 min read
Easiest way to pass NABCEP PV Installation Professional Exam
From HeatSpring.com PV Boot Camp Discussion Board Q: Sean, I have completed my OSHA 10 course and I am contemplating taking the OSAH 30...
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Mar 30, 20162 min read
Calgary Solar Energy
From HeatSpring.com PV Boot Camp Discussion Board A: Only after going over this chapter, I realized how significant is the temperature...
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Mar 30, 20161 min read
Shading, bypass diodes, portrait and landscape
From HeatSpring.com PV Boot Camp Discussion Board Q: Hi Sean, The layout of an array, landscape vs portrait was to install as many...
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Mar 28, 20161 min read
Battery inverter connected to battery vs. charge controller
From HeatSpring.com PV Boot Camp Discussion Board Q: In an off-grid system, do the batteries connect directly to the inverter? or do they...
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Mar 28, 20162 min read
NEC 310.15(A)(2) Exception, 10% or 10 feet or less for sizing conductors
NABCEP PV Installation Professional Exam Prep Course Discussion Board from HeatSpring Course Q: I don't quite understand the Week 1,...
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Mar 28, 20161 min read
Estimating production for different tilt angles with PV Watts
From HeatSpring.com PV Boot Camp Discussion Board Q: For Solar Energy Fundamentals, do you have any good resources on energy optimization...
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Mar 27, 20163 min read
Grounded Conductors, White, Red and Black Wires
From HeatSpring.com PV Boot Camp Discussion Board Q: When it comes to color coding wires. Are white (or gray) wires / conductors grounded...
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Mar 27, 20162 min read
PV system installed prices as low as $1.50 to $1.00 per watt
From HeatSpring.com PV Boot Camp Discussion Board Q: Do you know the price break down of how utility projects are getting installed for...
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Mar 27, 20161 min read
MPPT is just for things connected to PV
From HeatSpring.com PV Boot Camp Discussion Board Q: Are MPP Tracking systems are features built-in in the Grid-Tied inverters? In...
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Mar 26, 20162 min read
North Facing Modules
From HeatSpring.com PV Boot Camp Discussion Board Q: I do not have any particular question on your second lecture. Super clear, and thank...
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Mar 25, 20162 min read
The Difference Between Voltage Drop and Voltage with Ohms Law and Voltage Drop Percentage Calculatio
From HeatSpring.com PV Boot Camp Discussion Board Q: Hi Sean: I guess I am getting a little knotted up by this too. If we have a 100V...
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Mar 24, 20162 min read
Lead-Acid Battery Ventillation and Debris under the PV
From HeatSpring.com PV Boot Camp Discussion Board Q: Hi Sean: A couple of questions: If lead-acid batteries need to be adequately...
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