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10-05-2014, 01:42 PM
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#1
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Senior Member
Name: Myron
Trailer: Escape
New Mexico
Posts: 987
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Does a generator beat solar?
Wherever we go we near always dry camp. A key reason is price. Our recent trip to Wahweap campground at Lake Powel is a case in point. Full hookup sites, or, dry camping (tent) sites there were the only thing available. The full hookup price with AAA discount was $44.00/day. Tent site? $13.00. At 19 ft our trailer fits nice in a tent site. A few days later, camping dry at North Rim of the Grand Canyon was $9/night with the Geezer card. So it’s a no-brainer for me. I can carry a two gallon jug of water from a spigot with the best of ‘em.
My only issue is worry about over using electricity for the furnace, or the water pump, or if the propane runs out. How many days could we go before them twin 6 volt batteries show a critical 12.1 volts? Probably 3 to 4. Getting portable solar panels to replenish batteries have therefore been on my mind. Have never considered buying a generator.
Our recent stay at the North Rim, however, has changed my thinking. There, we were camped solidly in the shade. It does seem shaded campsites are more common…OK, depending where in the country you are. There may be no shady spots anywhere in southern Arizona, Texas, New Mexico, etc. Full sun sites are also hotter sites.
Don’t I have to shift them around with the shifting sun? Would I want to go off during the day leaving my charging solar panels exposed to theft?
At North Rim we saw a number of campers recharging their batteries in the late afternoon with small, surprisingly quiet generators. They are put away after a couple hours, done doing the job the solar panel does.
I was told the best one, the Honda generator, costs over eleven hundred dollars. For me that’s an instant deal killer. I was in Costco the other day and saw this, priced at $599.99. The brand is “Smarter Tools gasoline 2000W inverter/generator Sine Power Pro.” It has the Yamaha MZ80 engine and claims a sound rating of 51 to 59 dB. Weight, 47 lbs. Me beginning to like.
Anyone got one?
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10-05-2014, 02:12 PM
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#2
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Senior Member
Name: Sarah
Trailer: 1984 13' Scamp named "Ramblin Rose"
Texas
Posts: 158
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Honestly solar has a generator beat unless you have high power demands that solar can't keep up with - such as running an A/C.
You can be set up with a 100w solar panel and charge converter for under $150.
The issue of theft remains regardless of your choice of power - someone will take off with a small genset faster than they probably would attempt to take off with a portable solar panel, but you'd be out much less if all you lost was a panel.
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10-05-2014, 02:24 PM
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#3
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Senior Member
Name: Jason
Trailer: 2007 Eggcamper & Homemade Tear Drop
New York
Posts: 663
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You can always do what Rv Sue did. She put the solar panel and her 2 battery's in her van ( she has one in the camper also) so no one can steal it from the camp ground. Then when she gets back she has a long cord she runs from the van to the camper. When she is away from camp driving down the road or parked her battery's are always being charged.
Sent from my iPhone using Fiberglass RV
__________________
Jason
If you think you are to small to make a difference just try sleeping with a mosquito –- The Dally Lama
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10-05-2014, 02:39 PM
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#4
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Senior Member
Name: Myron
Trailer: Escape
New Mexico
Posts: 987
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Of course, the true, prime issue with solar is.... if you're in the shade you get no sun, so, no workeee. At north Rim we were next door to the guy with the Honda generator which he ran only to recharge his batteries. I hardly noticed until walking Ben after supper.
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10-05-2014, 02:47 PM
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#5
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Senior Member
Trailer: 2005 19 ft Scamp 19 ft 5th Wheel
Posts: 1,555
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We have 105w of roof-mounted solar on our Scamp 5er, and it does a good job of keeping up most of the time. Our trailer offers two things we can't use when we're dry camping: the microwave and Lynne's electric blanket.
The setup works well enough that we don't have any provision for a generator in our Surfside refit project, which is nearing completion. It has a 100w roof-mounted solar panel, and we've put a plug-in socket on the side of the trailer where we can connect an extra panel. That way we can set our 40w portable panel up away from the trailer if we park in a particularly shady spot.
Other things we've done in the Scamp and Surfside include adding a Wave-3 catalytic heater to the Scamp, which takes zero electricity to run. In the Scamp we'll often set the Suburban furnace to come on at some particularly low temperature and set the Wave-3 on low to keep the trailer warm at night. The Suburban only comes on on the very coldest of nights.
For our Surfside we installed an "Everest" furnace and don't have a Wave-3. THe Everest furnace consumes less electricity and runs much more quietly than the the Scamp's Suburban.
Both trailers have LED lights throughout. You can save more electricity by going to LEDs than almost any other energy saving measure you might think of.
The last two thing our trailers have are AGM batteries and winter charging on a BatteryMinder desulfinator/trickle charger. AGM batteries last longer, tolerate being more deeply discharged, and accept a charge with less loss of power than conventional "flooded" batteries. The BatteryMinder has a desulfinator circuit that reverses sulphation, a process that occurs when a battery is heavily discharged that hurts its ability to hold a charge. Used together, an AGM battery and BatteryMinder, an AGM battery should last a decade or longer, so you'll make back the extra you spend on the AGM battery in 6 years or so.
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10-05-2014, 03:35 PM
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#6
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Senior Member
Name: Steve
Trailer: 2018, 21ft escape— 2019 Ram 1500 Laramie
NW Wisconsin
Posts: 4,500
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I have camped in many locations that restrict or ban the use of generators.
I have never camped at any location that restricted or banned the use of solar
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10-05-2014, 03:47 PM
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#7
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Senior Member
Trailer: Class A Motorhome
Posts: 7,912
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If you look around you can easily find Honda EU2000i's for $999 on-line and, occasionally for $899, but that is rare. The Good news, you never have to apologize if you get the Honda, you can always get service and parts if needed, and the Honda will always have a very high resale value.
That's at least the third "Off Brand" inverter generator I have seen at Costco in the past few years. And where do you go if it breaks, how long will it last and what's it's recovery value.
If COSTCO is still that brand in 3 years, I will take a look, until then, is Honda or none.
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10-05-2014, 04:26 PM
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#8
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Senior Member
Trailer: Oliver
Posts: 711
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Quote:
Originally Posted by peterh
...The BatteryMinder has a desulfinator circuit that reverses sulphation, a process that occurs when a battery is heavily discharged that hurts its ability to hold a charge. Used together, an AGM battery and BatteryMinder, an AGM battery should last a decade or longer, so you'll make back the extra you spend on the AGM battery in 6 years or so.
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I would be careful using the desulfation mode with your AGM batteries unless you can limit the voltage to 13.6. Higher voltages could boil off some of the liquid within and you are unable to replace it. Most AGM mfg. don't recommend desulfation. We have the Trojan's in our trailer and I've spoken to their tech dept. about this. They said don’t do it. It's no problem with our solar setup as we can set the voltage points at whatever we want on the controller. The onboard PD Converter/Charger is not so blessed.
__________________
Steve and Tali - Dogs: Rocky and our beloved Reacher, Storm, Maggie and Lucy (waiting at the Rainbow Bridge)
2008 Outlaw Oliver Legacy Elite & 2014 Outlaw Oliver Legacy Elite II
2022 Silverado High Country 3500HD Diesel 4x4
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10-05-2014, 05:02 PM
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#9
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Senior Member
Name: Norm and Ginny
Trailer: Scamp 16
Florida
Posts: 7,517
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Desulfation and Trojans
Quote:
Originally Posted by Steve Outlaw
I would be careful using the desulfation mode with your AGM batteries unless you can limit the voltage to 13.6. Higher voltages could boil off some of the liquid within and you are unable to replace it. Most AGM mfg. don't recommend desulfation. We have the Trojan's in our trailer and I've spoken to their tech dept. about this. They said don’t do it. It's no problem with our solar setup as we can set the voltage points at whatever we want on the controller. The on board PD Converter/Charger is not so blessed.
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We had a set of Trojan 105s in our motorhome and they were 14 years old when we sold the motorhome. The were virtually continuously on the Convertor and it's desulfating Charge Wizard. The Trojans seemed as solid after 14 years as when we purchased them around their 4th year.
Personally the desulfation cycle seemed to work just fine.
Actually for 2 of the years we rarely used the motorhome but kept it under charge and we'd be gone for 6 months at a time. Though some water boiled off while we were gone, never enough to harm the batteries. We'd just add an inch or so of distilled water when we got home and the Trojans were fine.
__________________
Norm and Ginny
2014 Honda Odyssey
1991 Scamp 16
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10-05-2014, 05:14 PM
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#10
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Junior Member
Name: Dean
Trailer: In the market
Ohio
Posts: 12
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With many TVs having inverters these days, why is it a bad idea to charge the RV batt with the TV inverter and a battery charger? Or for that matter, run a microwave for 5 minutes?
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10-05-2014, 06:03 PM
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#11
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Senior Member
Trailer: Class A Motorhome
Posts: 7,912
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TV Inverters
Quote:
Originally Posted by Dean Vorhees
With many TVs having inverters these days, why is it a bad idea to charge the RV batt with the TV inverter and a battery charger? Or for that matter, run a microwave for 5 minutes?
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Most TV inverters are fairly small, about 200 watts, and you would have to keep the engine running to not run down the TV's battery. A direct connection, battery to battery would also work, but has the same problems.
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10-05-2014, 06:14 PM
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#12
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Senior Member
Trailer: Oliver
Posts: 711
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Norm, you are correct about the flooded Trojan 105's. Ours are Trojan AGM's and need to be charged a little differently from yours.
__________________
Steve and Tali - Dogs: Rocky and our beloved Reacher, Storm, Maggie and Lucy (waiting at the Rainbow Bridge)
2008 Outlaw Oliver Legacy Elite & 2014 Outlaw Oliver Legacy Elite II
2022 Silverado High Country 3500HD Diesel 4x4
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10-05-2014, 06:51 PM
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#13
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Senior Member
Trailer: 92 16 ft Scamp
Posts: 11,756
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Quote:
Originally Posted by Myron Leski
Of course, the true, prime issue with solar is.... if you're in the shade you get no sun, so, no workeee. At north Rim we were next door to the guy with the Honda generator which he ran only to recharge his batteries. I hardly noticed until walking Ben after supper.
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I do most of my camping in the PNW with lots of tree coverage but I still feel solar trumps generator. Generators are not a popular item at some of the spots I have camped. Not to mention the fact they have a running cost (gas consumption) that you don't have with solar & most of the better generators are more expensive than a basic solar system that most of us can get away with if we set the trailer up correctly (LED lights for starters) and watch our power consumption.
I keep my solar panel loose so on those occasions when the trailer is in the full shade I can put the panel out on a stand in a position where it can pick up some light & move it as the light moves. As far as theft of the panel goes I don't leave it sitting out in the open when Im not at the trailer but I have stuck it up on the roof were it is not visible many many times and left the trailer for the day. It will do some charging even if not in full sun. I have even left it up on the roof while attending a 3 day music/camping festival with 30,000 people attending and I was away from the trailer from noon to midnight and it did not walk. Luck perhaps but thats why I have insurance just in case my luck runs out.
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10-05-2014, 06:52 PM
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#14
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Senior Member
Name: Mike
Trailer: 2012 Escape 19
Oklahoma
Posts: 6,020
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It is possible that you might hit a prolonged period where your solar panels would have little or no direct sun. But I think the possibility is reasonably unlikely. If your batteries will last for 3 or 4 days, at some point in that 3-4 days you probably will be in a place with available sun. With 100W or more of solar, you should be in decent shape.
I left my 75W panel out all the time while at Yosemite (for a week), and no problems. I did move it around sometimes to catch more sun, but probably didn't need to.
The cheaper generators are made in China, and I've read that it can be hard to get parts or service for them... and they aren't always as reliable as the Honda or Yamaha. About the best thought of, cheap genny is the Champion inverter generator; folks say they are pretty good and pretty quiet, and under $600 at some retailers.
Any time you have a small engine, you have to run it every couple of months to keep it working right. You should plan to use pure gas (no ethanol content) and maybe some Sta-Bil gas stabilizer. It's another thing to maintain, something heavy to move around.
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10-05-2014, 07:04 PM
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#15
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Senior Member
Name: Jack L
Trailer: Sold the Bigfoot 17-Looking for a new one
Washington
Posts: 1,561
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Quote:
Originally Posted by peterh
We have 105w of roof-mounted solar on our Scamp 5er, and it does a good job of keeping up most of the time. Our trailer offers two things we can't use when we're dry camping: the microwave and Lynne's electric blanket.
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The key words in the above quote are "most of the time". I have a 100W roof mounted panel so theft is not a concern but sometimes the trailer is not in the best position to maximize the solar. I have also experienced times when we had plenty of sunshine but dust and dirt buildup on the panel prevented a full charge. Ice and snow have also had the same effect. I have thought of carrying a ladder to aid in cleaning an maintenance on the panel as well as other roof maintenance.
So far most of the time has been a workable situation. Unless I need the use of the furnace a lot, solar gets the job done well.
I will probably get a generator some day. I could run the AC when it's hot and in cold weather I could use the furnace more. Until then the solar is a huge plus and I'm glad I installed it. The thought of adding a generator and gas can to the equipment I carry concerns me.
Adding 60 pounds or more of generator and fuel in an already full pick up would be a challenge.
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10-05-2014, 07:35 PM
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#16
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Administrator
Name: Mary
Trailer: 2015 Escape 21; formerly Casita 1999 17 ft Liberty Deluxe
Posts: 10,941
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Another thing about generators that puts me off them is the smell of their exhaust.
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10-05-2014, 08:10 PM
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#17
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Senior Member
Name: Jason
Trailer: 2007 Eggcamper & Homemade Tear Drop
New York
Posts: 663
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If your solar does not keep up can't you just hook up your TV and let it run for 30 min to help charge the battery's?
Just a thought then you would not need a generator.
Sent from my iPhone using Fiberglass RV
__________________
Jason
If you think you are to small to make a difference just try sleeping with a mosquito –- The Dally Lama
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10-05-2014, 08:12 PM
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#18
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Senior Member
Trailer: Scamp
Posts: 7,056
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Quote:
Originally Posted by Mary F
Another thing about generators that puts me off them is the smell of their exhaust.
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Exhaust is flat dangerous. A few years ago a couple guys died sleeping in a tent close to an RV with a generator, I believe that happened in Yellowstone. Every year several people die from CO created by generators.
I use a portable 65 Watt solar panel. The only time I had a problem was when I left the panel stored one day too long. The best thing to do is control power usage, LED lights made the biggest difference for us.
With my single little 74amp hour battery I can go for 3 to 4 days without recharging longer when I'm not using the furnace. The only thing I use the house battery power for is lights and the furnace fan. Recharging of electronic devices is generally done with the TV. The Tow Vehicle doesn't usually sit for more than 2 days a time. When we do go someplace it's a good time to charge computers, and kindles.
A generator to me would be an extra cost, weight burden, and something more to fuss with, change oil, play in grease. And don't forget generator hours or you're in trouble.
As was said I've never seen solar panels banned or hours of use restricted.
__________________
Byron & Anne enjoying the everyday Saturday thing.
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10-05-2014, 08:26 PM
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#19
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Senior Member
Name: David
Trailer: Former 13’Scamp, now Snoozy
Arizona
Posts: 2,316
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When we had our 13' Scamp, I mounted a 100 watt solar panel over the front window, and although it could swivel angles up and down, I never adjusted it and it always fully recharged our group 27 battery, no matter what the weather was like. We now have a Lil Snoozy, and I have 2 100 watt flexible solar panels that are going to be mounted on the curved front part of the trailer, so I can keep them clean without a ladder. We also have a Yamaha 2000 watt generator that just sits around doing nothing. IMHO even the quietest generator breaks the silence that I am seeking when out camping.
Dave & Paula
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10-05-2014, 10:55 PM
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#20
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Senior Member
Trailer: 2004 13 ft Scamp Custom Deluxe
Posts: 8,520
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Neither is much good at night after "quiet time" has started!
No really, I would say it depends on your camping style.
In our case, we have had very little use for either.
It seems the only real use for a generator would be A/C.
How many solar panels would it take to run A/C?
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