[RE-wrenches] PV Powered PVP 2900-208 comms

2019-12-17 Thread chris
Hi folks: I’m asking for a person looking info on this unit; does anyone have the modbus information to make use of the comm card? PV Powered is no more and we’re not coming up with much. Feel free to contact me off list. Chris Daum Oasis Montana Inc. 406-777-4309 406-777-4309 fax

[RE-wrenches] Gateway update version 1.05

2019-12-17 Thread Dave Angelini Offgrid Solar
This may address some of the issues in the group here with Gateway and Insight2. WiFi station mode and modbus maps are out https://mailchi.mp/07d2198ddd95/webinar-battery-technologies-for-solar-applications-1214913?e=2eb4a8e1cc [1] Dave Angelini Offgrid Solar "we go where powerlines don't" ht

Re: [RE-wrenches] Reactive Power

2019-12-17 Thread Jay
Hi drake, The batteries see watts The inverter sees VA jay > On Dec 17, 2019, at 7:17 AM, drake.chamber...@redwoodalliance.org wrote: > >  > Hello Wrenches, > > I checked my laptop with a Kill A Watt meter. It drew 25 W,but 49 VA. Which > number represents the true draw on the batteries? >

Re: [RE-wrenches] Reactive Power

2019-12-17 Thread Alex MeVay
Hi Drake, 25W should be the draw from the batteries after accounting for inverter efficiency. Note that the low power factor will reduce the effective inverter efficiency, since the inverter still has 49VA of reactive power causing losses. For a small switching power supply like the laptop's, th

Re: [RE-wrenches] Reactive Power

2019-12-17 Thread Will White
The 25 W would be used to size the batteries, 49 VA would be used to size the inverter. Good luck, Will -- *Will White* Curriculum Developer e: w...@solarenergy.org w: www.solarenergy.org p: 802-272-3092 NABCEP Certified PV Installation Professional # 093006-34 *FACT: If we covered 0.33% of

[RE-wrenches] Reactive Power

2019-12-17 Thread drake . chamberlin
Hello Wrenches, I checked my laptop with a Kill A Watt meter. It drew 25 W,but 49 VA. Which number represents the true draw on the batteries? Thanks, Drake ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Cha