diy solar

diy solar

Anyone have the scoop on the upcoming Sol-Ark limitless system?

niktak11 said:
And here I am wondering if 2 15k will be enough for me lol. When the heat strips on my heat pump are on, my heat pump alone is probably using 18-20kW. Plus I have a fridge and 6 freezers running most of the year, an electric car, electric water heater, electric range and oven, electric washer and dryer, etc.

That also doesn't count my 240V well pump that draws 62A at startup but I'm already planning to use a separate inverter for that.
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Are you sure about those numbers? I have a open loop heat pump and have been monitoring it for about a year now. As long as you do not initiate the auxiliary electric resistance heat it only pulls 4.5 KW when BOTH the pump (1 HP) and the heat-pump (3 tons) are running at the same time. A little more when you include the fan, condensation pump etc.
Note that I live in Michigan and it can get really cold here. I rarely (Once in the last 5 years) have a need to run my Resistance auxiliary.
Actually my number one energy consumption is a convection stove that has a super fast warm up feature. Pulls 8.5 KW but only in pulses lasting less than a few minutes.
You might really want to go back and look at your loads by actually measuring them. Then look at what can be minimized (Like disabling the super fast warm ups on your stove) etc. Other things to look at are slow start kit for your motors, reducing your HW heating elements, etc.
It may be a lot more cost effective to do some savings on that side rather than adding a lot of capabilities that you may not really need.
 
Johndo said:
Are you sure about those numbers? I have a open loop heat pump and have been monitoring it for about a year now. As long as you do not initiate the auxiliary electric resistance heat it only pulls 4.5 KW when BOTH the pump (1 HP) and the heat-pump (3 tons) are running at the same time. A little more when you include the fan, condensation pump etc.
Note that I live in Michigan and it can get really cold here. I rarely (Once in the last 5 years) have a need to run my Resistance auxiliary.
Actually my number one energy consumption is a convection stove that has a super fast warm up feature. Pulls 8.5 KW but only in pulses lasting less than a few minutes.
You might really want to go back and look at your loads by actually measuring them. Then look at what can be minimized (Like disabling the super fast warm ups on your stove) etc. Other things to look at are slow start kit for your motors, reducing your HW heating elements, etc.
It may be a lot more cost effective to do some savings on that side rather than adding a lot of capabilities that you may not really need.
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The heat strips run during the defrost cycle too. Your numbers are similar to mine for when the heat strips aren't on.
 
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FilterGuy said:
I have not heard of it.... please tell us what you have heard.
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According to a Tech I talked too its the new Sol-ark 15kw inverter. Initially April but now Summer waiting on Certification and what not.

OEM by DeYe or Sunsyk whomever you wish to credit and distributed by Sol-ark.

Specs are available

www.ecodirect.com

Sol-Ark 15,000 Watt 48 Volt All-In-One Solar Generator - SA-15k Hybrid Inverter | 15K-2P

Sol-Ark 15,000 Watt 48 Volt All-In-One Solar Generator - SA-15k Hybrid Inverter | 15K-2P Â EcoDirect.com | Call Us! 760-597-0498
www.ecodirect.com
 

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niktak11 said:
The heat strips run during the defrost cycle too. Your numbers are similar to mine for when the heat strips aren't on.
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Ah, sorry, I thought I read you had a geothermal heat pump. You have an air heat pump. A "defrost" cycle is not necessary on geothermal.
 
Is this still expected in June? I need an inverter with a zero export mode soon.
 
niktak11 said:
Is this still expected in June? I need an inverter with a zero export mode soon.
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"Mid-June to July timeframe" is what the Sol-Ark Sales Team shared with me 6 days ago. Availability in California will take longer.
 
FilterGuy said:
Hmmmmm That is a lot but for a very short time. Motors can easily create surges that last for seconds, not tenths of seconds.
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What types of motors? The peak surge on my 3HP well pump is too fast to even see if you don't have a clamp meter that measures inrush. Only a couple cycles at the most. My other main inductive load is a 4 ton heat pump but I haven't checked the surge time on that yet.
 
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Even still the 24kVA for 10 seconds surge is huge! 100A should start up a good sized central air/heat pump system.
 
90w of standby power is about the only bummer I'm seeing, also no mention of emp option so far.
 
That's standby with no Inverter power, the inverter power will be 96.5-97.5% efficient also the 12k has a 60w standby rating.

So if you pull the full 15,000 from solar and turn it into AC you should have 615w of loss with the 90w considered.
 
Aleksrussian said:
That's standby with no Inverter power, the inverter power will be 96.5-97.5% efficient also the 12k has a 60w standby rating.

So if you pull the full 15,000 from solar and turn it into AC you should have 615w of loss with the 90w considered.
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I know. 90W idle is very good. My LVX6048 idles at around 135W and that's only a 6kW inverter.
 
niktak11 said:
I know. 90W idle is very good. My LVX6048 idles at around 135W and that's only a 6kW inverter.
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Yeah it's certainly not bad just disappointing that's its much higher than the 12k. Also the growatts do just about as good on idle power as the solark so I was just hoping at this price range they can do something better but I guess it is what it is.

Speaking of idle power, has anyone tried running Sol-Ark's in parallel and shutting one off to try to save energy? What happens?
 
Aleksrussian said:
Yeah it's certainly not bad just disappointing that's its much higher than the 12k. Also the growatts do just about as good on idle power as the solark so I was just hoping at this price range they can do something better but I guess it is what it is.

Speaking of idle power, has anyone tried running Sol-Ark's in parallel and shutting one off to try to save energy? What happens?
Click to expand...
Isn't the idle consumption of the 12kW growatt at least twice as high as this model?
 
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