[RE-wrenches] Off grid loads Load sheet

[Dana]

There is wide spread on the hot tubs. I have an offgrid client who bought a
super-insulated (6-12" of foam) tub that heats the water with the waste heat
from the (very inefficient) motor @ 120 vac. It went away when he was
enlightened as to how it heated the water. I did not measure the load but it
sank his battery bank.

I have measured a few sat systems;  32-35 watts/hour about the same as a
blue ray and DVD/CD player, & Routers at 4-12 watts/hr, answer mach @ 12-15
watts/hr with cordless phone charger charging, Garage door openers from
25-80 watts/hr depends on Manu, Motion detectors at 4-12 watts/hour depends
on Manu.

 

I have several watt hour meters I loan out for folks to do their "homework"
on their loads before I do a design that helps & I see lots of variation on
items.

2 years ago in LA, I went into Costco with my Brand watt hour meter and 60"
flat screens were pulling 65-83 watts. I was elated to find some real
efficiency and a larger screen. 

I went in this last holiday season and ran the meter on the "NEW Smart" 60"
flat screens and the lowest draw was 95+ watts and a lot were in the 125+
watt range. The new 60" flat screens come with a wireless keyboard and were
full on computers with every cable and internet ready application you can
imagine.

 

----------------------------------------------------------------------------

Dana Orzel 

Great Solar Works, Inc -  NABCEP # 051112-136

E - dana at solarwork.com  - Web - solarwork.com 

O - 970.626.5253  C - 208.721.7003 - No FAX Line

"Responsible Technologies for Responsible People since 1988"  

P Please consider the environment before printing this email.

 

 

From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On
Behalf Of frenergy
Sent: Thursday, March 19, 2015 8:56 AM
To: RE-wrenches
Subject: [RE-wrenches] Load sheet

 

Wrenches,

 

        I'm always trying to update my reference for KWhrs/day for various
loads, especially as time marches on folks are of course wishing to power
the latest gizmo with an off-grid system.  I can't seem to find very current
info.  The days of going into search are certainly long gone with the advent
of answering/cordless phones, satellite dishes, routers, security systems,
etc...creating a heck-of-a  "phantom load" 24/7.

 

        Specifically, this time I'm hoping some of you have first-hand
numbers on KWhrs/day for a propane fired hot tub (still has brains of some
kind, ignition, pump(s), satellite dish for internet/TV and I'm not counting
on-demand water heater as much of a load due to its intermittent use unless
others have seen otherwise.  I've never taken the "kit" approach, hoping a
cookie cutter sized system will fit a need, instead trying to really nail
the consumption-production dance leaving room for expansion.

 

        If there is a favorite website anyone has for more current numbers
(KWhrs/day or even just watts) on current household appliances, I would
appreciate it.

 

Thx,

 

Bill Battagin

Feather River Solar Electric
4291 Nelson St.
Taylorsville, CA  95983
530.284.7849 / 6544 fax

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