There are 2 kinds of Solar Charge Controllers, PWM and MPPT for various Combinations!
1. SM-314-20A: For a 24V System – < 480W Battery system
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It’s better to use a PWM 20A controller
And we have SolarHome 455W panel bundle together , can be a less than 455W/24V system
for all kinds of DC24 Load with battery back up!
24V batteries should be used with solar panels capable of generating 36V-50V
With 24V batteries, the maximum panel voltage must not exceed 50V
With 24V batteries, the maximum panel voltage must not exceed 50V
Maximum Power Input:20A
Model 12V: 240W (MAX), 24V: 480W (MAX)
Operating Temperature: -35 ~ +60C
Storage Temperature: -35 ~ +60C
Storage Temperature: -35 ~ +60C
Dimension: 6″ x 3″ x 2″
Weight: 6 Oz
2. SM-312-20A: For a 48V System – < 2800W Battery system
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Use a MPPT 60A Charge Controller to monitor 3 x 455W Solar panels.
So buyers can set up a 48V battery backup system for all kinds of DC48V Load.
e.g. Like our 48VDC Solar Air Conditioners
Dimension: 8.43″ x 4.53″ x 1.97″
Weight: 2.65 lbs
Max PV input: 48V System – 2800W
Max PV input Voltage: 48V System: 190V
This is 2022 new model, max input 190V, so no need to use a Combiner Box
For 3 x 455W Solar Panels, max voltage @41.1V, total 123.3V
For 4 x 455W Solar Panels, ” , total 164.4V
Even in Summer, the Voltage floats to 47~49V, the new MPPT charge controller can handle the higher influx during peak hours
3.455W Solarhopme PERC Mono Solar Panels
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Dimension: 82″x41″x 1.38″
Weight: 56 lbs
Vmax: 41.1V
Voc: 49.8V
Imax: 11.08A
Isc: 11.61A
Vmax: 41.1V
Voc: 49.8V
Imax: 11.08A
Isc: 11.61A
4. Delivery:
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Please note, we can only ship the charge controllers but solar panels – local pickup only!
5.Federal Income Tax 30% Credit for Residential Solar System & Equipment:
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In the Inflation Reduction Act of 2022, the tax credit will begin at 30% and step down to 26% in 2033 and 22% in 2034.
==>Download form from this link and give to your accountant
https://www.irs.gov/pub/irs-pdf/f5695.pdf
2022~2032: 30%
2033: 26%
2034: 22%
New Features:
- Included Storage Investment, either combine with solar or separately
- Tax Credit Deduction can be extended to Next year if the first year tax amount is lower than credit.
6.PWM or MPPT Charge Controllers
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There are 2 kinds of Solar Charge Controllers, here is a good article to read
https://www.phocos.com/wp-content/uploads/2019/11/Guide-Comparing-PWM-MPPT-Charge-Controllers.pdf
Use this chart to decide which controllers suitable for your systems
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