Forum Discussion
reed_cundiff
Aug 03, 2014Explorer
"...In reality, 30ft trailer - meaning 30ft box - will have room for 6*250W solar, not 2,000W. There should be clearance from roof structures, sides, front cap, and enough space to walk between all this if you need to inspect the roof and/or service the panels. Unless you cover the side walls with folding panels that you would have to fold/unfold every time, getting 2,000W on a 30ft box is going to be difficult..."
As noted in earlier post, we have 1420 W of solar on a 34’ 5th wheel and could have put another 700 W if had we so chosen. We have obtained over 1300 W to controller at mid-day in summer. There are definitive power losses in the system as is expected to battery suite and then from battery suite through inverters.I just went on roof to check and 3 more 235 W panels could be installed. We would have to remove the TV aerial but we don't watch TV anyway (we are generally not in coverage)
"Also, 4*6V batts is a lot of batteries for some RVs, and RV-oriented lithiums in infant stage yet"
As noted in earlier posts, we have 9.6 kW-hours of lithium-iron-phosphate and it has worked extremely well for a year. LFP is beyond infant stage and into advanced development since Liberty Coaches has been installing on all their $2M Liberty Ladies for the last two years. This is much like the ads in Scientific America 50 years ago when GE was making fun of solid state devices (transistors then) by noting that valve technology was quite developed and we should never need anything more advanced.
Son Cary noted we have room for another 4.9 kW-hours of LFP in the bay. We do not think this is necessary and choose not to do such. 14.5 kW-hour and 24 kW-hour lithium suites are available.The latter is about 500#. The prices are going down.
We do run the a/c several times a day when it does get hot. We choose not to run it continually since we are a bit OCD about going far down on DOD.
Ron Jones was the first that we know of to incorporate LFP which he did on his motorhome(400 amp-hours I believe).
Reed and Elaine
As noted in earlier post, we have 1420 W of solar on a 34’ 5th wheel and could have put another 700 W if had we so chosen. We have obtained over 1300 W to controller at mid-day in summer. There are definitive power losses in the system as is expected to battery suite and then from battery suite through inverters.I just went on roof to check and 3 more 235 W panels could be installed. We would have to remove the TV aerial but we don't watch TV anyway (we are generally not in coverage)
"Also, 4*6V batts is a lot of batteries for some RVs, and RV-oriented lithiums in infant stage yet"
As noted in earlier posts, we have 9.6 kW-hours of lithium-iron-phosphate and it has worked extremely well for a year. LFP is beyond infant stage and into advanced development since Liberty Coaches has been installing on all their $2M Liberty Ladies for the last two years. This is much like the ads in Scientific America 50 years ago when GE was making fun of solid state devices (transistors then) by noting that valve technology was quite developed and we should never need anything more advanced.
Son Cary noted we have room for another 4.9 kW-hours of LFP in the bay. We do not think this is necessary and choose not to do such. 14.5 kW-hour and 24 kW-hour lithium suites are available.The latter is about 500#. The prices are going down.
We do run the a/c several times a day when it does get hot. We choose not to run it continually since we are a bit OCD about going far down on DOD.
Ron Jones was the first that we know of to incorporate LFP which he did on his motorhome(400 amp-hours I believe).
Reed and Elaine
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