Re: [RE-wrenches] Enphase performance

ay's power production of 22 M190 microinverters (nominal 4180 watts AC): Mark Mark Westbrock NABCEP Certified Solar PV Installer NM ER-1J Journeyman Electrician Positive Energy, Inc. office: 575-524-2030 cell: 575-640-2432 westbr...@positiveenergysolar.com www.positiveenergysolar.com We definit

Re: [RE-wrenches] Enphase performance

219 watts, although the spec sheet specifies 210 watts.  This contradiction between "specified" and "actual" is troubling, both for proper overall system design and proper sizing of overcurrent protection, per 690.8(B)(1). Mark Westbrock NABCEP Certified Solar PV Installer NM ER-1

Re: [RE-wrenches] #10 THWN-2

N or THWN-2". The insulation also says "Type MTW or THHN or THWN-2". Mark Mark Westbrock NABCEP Certified Solar PV Installer NM ER-1J Journeyman Electrician Positive Energy, Inc. office: 575-524-2030 cell: 575-640-2432 westbr...@positiveenergysolar.com www.positiveenergysolar.com

Re: [RE-wrenches] The Demise of Reason, SunPower and WEEBs

lable that will comply with their warranty.  We continue to nag SunPower about getting their modules relisted for use with a WEEB or equivalent, but it has not yet come to pass. SM does refer to UniRac SolarMount. Thanks, Mark Mark Westbrock NABCEP Certified Solar PV Installer NM ER-1J

Re: [RE-wrenches] Combining Multiple Inverters

I agree that the exact placarding will depend on your AHJ, but you will certainly want one that says something like "This breaker panel is for combining solar inverter outputs. Do not add any additional breakers or make any circuit connections". ---- *Mark Westbrock* Field Manager

[RE-wrenches] Mounting PV array on Quonset hut

hut. Does anyone have any suggestions and/or photos of such an installation? Thanks, Mark *Mark Westbrock* Field Manager & Employee-Owner NM EE98J Journeyman Electrician NABCEP Certified PV Installation Professional NABCEP Certified PV Technical Sales <http://positiveenergyso

Re: [RE-wrenches] TL inverter with long DC Feeder

If you don't want to combine strings at the array, then I would use a Square D HU361 for each string. It is a lot of hardware, but not too expensive and very straightforward for a lay person to shut off without risk. Cheers, Mark ---- *Mark Westbrock* Field Manager & Employee-Owner

Re: [RE-wrenches] SMA TL meter communication interference?

I would point your utility to the SMA spec sheet that shows that the inverter is FCC Part 15 (Class A & B) compliant. ---- *Mark Westbrock* Field Manager & Employee-Owner NM EE98J Journeyman Electrician NABCEP Certified PV Installation Professional NABCEP Certified PV Technical Sales

Re: [RE-wrenches] TL Inverters & Rapid Shutdown

SPS will be deenergized. Installer will need to run a communications cable up to the roof, so either 600V rated CAT5 cable in your DC conduit, or a separate conduit. I hope all is well with you down in Texas. Cheers, Mark *Mark Westbrock* Branch Manager & Employee-Owner NM E

Re: [RE-wrenches] Corrugated Roof Brackets

sister up trusses so that you have a structural member directly below a corrugation peak. *Mark Westbrock* Branch Manager & Employee-Owner NM EE98J Journeyman Electrician NABCEP Certified PV Installation Professional NABCEP Certified PV Technical Sales Positive Energy, Inc. 510 S. Ma

Re: [RE-wrenches] Corrugated Roof Brackets

with a dynaflash. Although the manufacturer's literature also shows using this product with pro-panel type roofs, for those we prefer either standoffs with dyna-flash or Schletter Fix-Ts. Cheers, Mark ---- *Mark Westbrock* Branch Manager & Employee-Owner NM EE98J Journeyman Electrici

Re: [RE-wrenches] Solar cooker plans request

#x27;m sure results vary for each individual oven, and of course, climatic conditions. Cheers, Mark *Mark Westbrock* Branch Manager & Employee-Owner NM EE98J Journeyman Electrician NABCEP Certified PV Installation Professional NABCEP Certified PV Technical Sales Positive Energy, Inc. 510

Re: [RE-wrenches] speaking of warranties

with the strange cell patterns actually tested out with a better observed vs. expected ratio than the Sunivas, which do not show the worm-tracks on their cells. Cheers, Mark Mark Westbrock| VP, Branch Manager | Employee Owner ​SunPower by Positive Energy Solar NABCEP™ Certified PV

Re: [RE-wrenches] 120% rule for hybrid inverters

l not exceed 120%". So, the 2014 wording basically allows all inverters to follow the exception that used to be there for hybrid inverters. I hope that helps. Cheers, Mark Mark Westbrock| VP, Branch Manager | Employee Owner NABCEP™ Certified PV Installation Professional NABCEP™

Re: [RE-wrenches] 120% rule for hybrid inverters

erter(s) output circuit current and the rating of the overcurrent device protecting the busbar", that the latter refers to the main breaker protecting the busbar from the utility. Cheers, Mark Mark Westbrock| VP, Branch Manager | Employee Owner NABCEP™ Certified PV Installation

Re: [RE-wrenches] Undersize wire on REC meter lug

the main lug. We love the Milbank U5934XL <http://www.milbankworks.com/blog/wp-content/uploads/2013/03/SolarSockets_8-13_Web2.pdf>, which accepts down to #12. It is our standard for residential REC meter cans. Cheers, Mark ---- Mark Westbrock| VP, Branch Manager | Employee Owner N

Re: [RE-wrenches] Splices in service panel

; and then indicate physical location of new subpanel (e.g. directly below this panel, etc.). I hope that helps. Cheers, Mark Mark Westbrock| VP, Branch Manager | Employee Owner NABCEP™ Certified PV Installation Professional NABCEP™ Certified Technical Sales Professional NM EE98J Licensed E

Re: [RE-wrenches] adjustable cordless impact drivers

Hi Jay, We use a Makita BFL300F "nut runner". They are expensive and hard to find, but a great tool for torquing down top clamps. It is nice and long for reaching over modules. We got ours from EF Bailey. Cheers, Mark Mark Westbrock Las Cruces Branch Manager NABCEP Certifie