I would keep the pieces separate just to make the functionality
straightforward. If you don't need a lot of power or Ethernet
monitoring you can keep the charge controller prices down in the $200
range. The converter is like $100 so you can do the whole thing very
cheaply with the prices of solar panels being so low.
On 7/2/21 10:30 AM, Bill Prince wrote:
It may come to that. Just wondered if there was a single charge
controller that could do that.
The closest I have dreamed up is a hybrid wind/solar charge controller,
and feeding the wind input with rectified AC. I would want to reduce the
rectified DC from the AC enough that it would drop below the input
voltage of the solar.
bp
<part15sbs{at}gmail{dot}com>
On 7/2/2021 10:22 AM, Robert Andrews wrote:
So to translate, you want to feed a battery bank with two sources,
Grid and Solar. So you want a AC->DC converter feeding a charge
controller and another charge controller fed by solar.
On 7/2/21 10:13 AM, Bill Prince wrote:
The problem is, we do not want it to be grid-tied; mainly because we
don't want to go through the hassle of the county and their grid-tied
goo-rah. We want this to be standalone, DC plant with power augmented
by solar.
bp
<part15sbs{at}gmail{dot}com>
On 7/1/2021 11:32 PM, Forrest Christian (List Account) wrote:
I'm not sure about the exact models which are being recommended, but
at least a few of these inverters are designed such that you tie
your solar into them, and your batteries into them, and they will
manage the solar+AC consumption in a way to minimize the AC
consumption. You'd have to look at each one to determine if their
implementation would work in your situation.
Also, are you somewhere that it doesn't just make sense to do a
grid-tied inverter and do net metering? (I.E. poor net metering
rules).
On Thu, Jul 1, 2021 at 4:57 PM Bill Prince <part15...@gmail.com
<mailto:part15...@gmail.com>> wrote:
Again, that has an inverter to supply the load. That is the
opposite of
what we are looking for.
bp
<part15sbs{at}gmail{dot}com>
On 7/1/2021 1:06 PM, Robert Andrews wrote:
>
https://shop.signaturesolar.us/products/6kw-120-240v-grid-tie-inverter-by-delta
>
>
> On 7/1/21 12:18 PM, Chuck McCown via AF wrote:
>> Outback power makes inverter/charger combo units. You could add
any
>> solar controller to the mix.
>> There are islanding inverters that are an all in one unit.
>> I don't know anything about this product but it came up when I
>> searched for islanding grid tie inverter:
>> https://www.pika-energy.com/islanding-inverter/
>>
>> -----Original Message----- From: Bill Prince
>> Sent: Thursday, July 1, 2021 12:25 PM
>> To: AFMUG
>> Subject: [AFMUG] Hybrid AC/Solar charge controller?
>>
>> We are looking for a hybrid AC/Solar charge controller. We have
a few
>> sites that are primarily powered by the grid on AC using a DC
UPS to
>> keep up a 48VDC plant. Most of the equipment runs directly on
the 48VDC,
>> with a few legacy devices running on 24VDC.
>>
>> We want to augment the AC power with solar for a couple of
reasons.
>> First, it will provide recharge for the AC during expected
rolling
>> blackouts. Second, we can reduce the overall AC/grid costs if
the solar
>> can provide the bulk of the power when the sun is shining. We
live in a
>> relatively solar-friendly environment, and typicially get 5-11
hours of
>> usable solar per day, depending on season. We think an
appropriately
>> sized solar/battery setup could eliminate the need for a
generator.
>>
>> I'd like to find an off the shelf solar controller that can
take 2 power
>> inputs; one from solar, and one from AC (or maybe just
rectified AC?).
>>
>> Any help from the borg?
>>
>>
>
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