Reply
 
Thread Tools Display Modes
 
Old 02-28-2019, 01:41 PM   #1
Mini-Skoolie
 
Join Date: Feb 2019
Location: Montreal
Posts: 17
Fully electrical bus?

With alot of solar panels, a generator and the alternator when driving...

Is it possible to go only electric for fridge, stove/oven and tankless water heater?
jee.string is offline   Reply With Quote
Old 02-28-2019, 01:53 PM   #2
Bus Geek
 
o1marc's Avatar
 
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 8,197
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
Yes, but you're going to need a massive and expensive battery bank.
o1marc is offline   Reply With Quote
Old 02-28-2019, 04:17 PM   #3
Bus Crazy
 
roach711's Avatar
 
Join Date: May 2010
Location: Farmington Hills, Mi (Detroit area)
Posts: 1,852
Year: 2000
Coachwork: Eldorado Aerotech 24'
Chassis: Ford E-450 Cutaway Bus
Engine: 7.3L Powerstroke
Rated Cap: 19
Generally speaking, lights draw the least current with motors (air conditioning, refridge, fans and water pump) drawing much more. The heaviest draws are resistance heaters (water heater, stove/oven, electric heat).

The amount of solar you can mount on a bus roof won't keep up with the big draws you mention. A generator will handle it but is a pain to use and a pain for your neighbors to be parked next to. Shore power would be the best option. If you plan to boondock, the genny would be your only practical option.
__________________
The Roach Motel
roach711 is offline   Reply With Quote
Old 02-28-2019, 05:12 PM   #4
Bus Geek
 
o1marc's Avatar
 
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 8,197
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
Quote:
Originally Posted by roach711 View Post
Generally speaking, lights draw the least current with motors (air conditioning, refridge, fans and water pump) drawing much more. The heaviest draws are resistance heaters (water heater, stove/oven, electric heat).

The amount of solar you can mount on a bus roof won't keep up with the big draws you mention. A generator will handle it but is a pain to use and a pain for your neighbors to be parked next to. Shore power would be the best option. If you plan to boondock, the genny would be your only practical option.
I'm still trying to figure out the components for the solar system. How many watts would you need for his application? I have 10 panels equaling 2450w. How much would be needed for an average to slightly higher demand of a normal RV build?
o1marc is offline   Reply With Quote
Old 02-28-2019, 05:14 PM   #5
Mini-Skoolie
 
Join Date: Feb 2019
Location: Montreal
Posts: 17
so the best would be propane for oven/stove + water heater and solar could keep up the charge for fridge and compost toilet fan?

forget to say this skoolie will follow warm temperatures, so small wood stove will do all the heating when necessary!
jee.string is offline   Reply With Quote
Old 02-28-2019, 05:16 PM   #6
Bus Geek
 
o1marc's Avatar
 
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 8,197
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
Quote:
Originally Posted by jee.string View Post
so the best would be propane for oven/stove + water heater and solar could keep up the charge for fridge and compost toilet fan?

forget to say this skoolie will follow warm temperatures, so small wood stove will do all the heating when necessary!
You might consider a propane refrigerator also.
o1marc is offline   Reply With Quote
Old 02-28-2019, 05:19 PM   #7
Mini-Skoolie
 
Join Date: Feb 2019
Location: Montreal
Posts: 17
bet those are mostly rv ones?
jee.string is offline   Reply With Quote
Old 02-28-2019, 05:20 PM   #8
Bus Geek
 
o1marc's Avatar
 
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 8,197
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
Quote:
Originally Posted by jee.string View Post
bet those are mostly rv ones?
What was this referring to? Aren't we building RV's?
o1marc is offline   Reply With Quote
Old 02-28-2019, 05:21 PM   #9
Mini-Skoolie
 
Join Date: Feb 2019
Location: Montreal
Posts: 17
propane fridges. havent heard of that alot!
jee.string is offline   Reply With Quote
Old 02-28-2019, 05:23 PM   #10
Bus Geek
 
o1marc's Avatar
 
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 8,197
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
Quote:
Originally Posted by jee.string View Post
propane fridges. havent heard of that alot!
You won't hear about them much. I never heard of one till I started the bus. It's ideal for that application if it doesn't have issues that some have mentioned.
o1marc is offline   Reply With Quote
Old 02-28-2019, 05:25 PM   #11
Mini-Skoolie
 
Join Date: Feb 2019
Location: Montreal
Posts: 17
what have you heard?
jee.string is offline   Reply With Quote
Old 02-28-2019, 05:33 PM   #12
Bus Crazy
 
roach711's Avatar
 
Join Date: May 2010
Location: Farmington Hills, Mi (Detroit area)
Posts: 1,852
Year: 2000
Coachwork: Eldorado Aerotech 24'
Chassis: Ford E-450 Cutaway Bus
Engine: 7.3L Powerstroke
Rated Cap: 19
Quote:
Originally Posted by o1marc View Post
I'm still trying to figure out the components for the solar system. How many watts would you need for his application? I have 10 panels equaling 2450w. How much would be needed for an average to slightly higher demand of a normal RV build?
The problem with solar power is that you have to park in full sun and that causes the bus interior to heat up which requires vent fans at minimum or air conditioning. The fans aren't a huge draw but the AC definitely is and it would take a huge battery bank to power it.


To figure how large a battery bank/solar array to install you need to do an energy audit and figure out how much power you'll need on a given couple of days. Also, consider that panels rarely put out their full rated power, inverters claim some juice to make their DC/AC conversion and the sun doesn't shine every day.

We boondock a lot and propane is our go-to power source.
__________________
The Roach Motel
roach711 is offline   Reply With Quote
Old 02-28-2019, 05:38 PM   #13
Mini-Skoolie
 
Join Date: Feb 2019
Location: Montreal
Posts: 17
not sure what boondocking means
jee.string is offline   Reply With Quote
Old 02-28-2019, 05:43 PM   #14
Bus Crazy
 
roach711's Avatar
 
Join Date: May 2010
Location: Farmington Hills, Mi (Detroit area)
Posts: 1,852
Year: 2000
Coachwork: Eldorado Aerotech 24'
Chassis: Ford E-450 Cutaway Bus
Engine: 7.3L Powerstroke
Rated Cap: 19
Boondocking is parking off the grid in a forest or a Walmart parking lot. You need to be self contained since there are no campground hookups.
__________________
The Roach Motel
roach711 is offline   Reply With Quote
Old 02-28-2019, 05:45 PM   #15
Mini-Skoolie
 
Join Date: Feb 2019
Location: Montreal
Posts: 17
gotcha! thanks for the info!
jee.string is offline   Reply With Quote
Old 02-28-2019, 05:56 PM   #16
Bus Geek
 
o1marc's Avatar
 
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 8,197
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
Quote:
Originally Posted by roach711 View Post
The problem with solar power is that you have to park in full sun and that causes the bus interior to heat up which requires vent fans at minimum or air conditioning. The fans aren't a huge draw but the AC definitely is and it would take a huge battery bank to power it.


To figure how large a battery bank/solar array to install you need to do an energy audit and figure out how much power you'll need on a given couple of days. Also, consider that panels rarely put out their full rated power, inverters claim some juice to make their DC/AC conversion and the sun doesn't shine every day.

We boondock a lot and propane is our go-to power source.
Well that didn't get me any closer to an answer. What if you don't know what fridge or stove you plan on before designing your solar system? There should be an average electrical plan for RV's, some have more, some have less. But more, less, and huge, are all relative terms. What is the average consumption of an oven from- to? What number do you put on a "huge" battery bank? I have my panels and a 3k-6k pure sine inverter. I need a charge controller that will exceed the needs of the system. Do those items help me get closer to what kind amperage requirement I will need in order to determine my battery bank?
o1marc is offline   Reply With Quote
Old 02-28-2019, 06:12 PM   #17
Mini-Skoolie
 
Join Date: Feb 2019
Location: Montreal
Posts: 17
i wasnt really looking for a very precise answer... it was more a question to lead me in a good diretion
jee.string is offline   Reply With Quote
Old 02-28-2019, 06:40 PM   #18
Bus Crazy
 
joeblack5's Avatar
 
Join Date: Dec 2015
Location: pa
Posts: 1,514
Year: 98
Coachwork: 1. Corbeil & 2. Thomas
Chassis: 1 ford e350 2 mercedes
Engine: 7.3 powerstroke & MBE906
It is very well possible to boondock without propane and all electric. Just define your mission. Without that the answer to your question will range from impossible, impractical to no problem.

Do you want to compromise? Live like on a space station? Then there is no problem as many van dwellers can show you. If on the other hand you want to cool your bus down to 65 f while you are in July in death valley then you will have a problem.

The answer to your question is as good as how well you define it.
joeblack5 is offline   Reply With Quote
Old 02-28-2019, 06:47 PM   #19
Bus Crazy
 
turf's Avatar
 
Join Date: Apr 2013
Location: Colorado
Posts: 1,599
Year: 1993
Coachwork: bluebird
Engine: 5.9 Cummins, Allison AT1545
Rated Cap: 2
i'll show my lack of knowledge on the subject, so glad to pipe in.

i've been watching the same thing, battery bank and solar panels. i have a generator, 400ah 12v fla battery bank and a shore connection. my batteries are due for replacement so i'd kind of like to upgrade to a solar set up.

i have seen 2 different source say they can run AC on a 200AH 24v lifepo4 battery bank. so thats kind of what i want to shoot for. i could easily fit 2 large solar panels on my roof.

i priced out panels - 2 @ $250, a battery bank300AH 24v lifepo4 - $2600, charge controller and invert for another $2300.
upgrade total - $5400

replacing my 4 batteries with the same thing - $400

looks like im sticking with my old setup
__________________
.
Turfmobile Build Thread
turf is offline   Reply With Quote
Old 02-28-2019, 06:53 PM   #20
Bus Geek
 
o1marc's Avatar
 
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 8,197
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
Correct me if I'm wrong, but don't you only get 50 usable aH out a 100aH FLA and almost 100 out of a Lifpo battery? I bought 10-245watt, 60" x 40" panels for $50ea, $70 after shipping, on eBay.
o1marc is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 02:43 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×