Reply With QuoteWhy are your batteries charging from the grid, or do they charge to a particular soc then pv tops them up?
How are you monitoring all loads?
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Some items we have at home or work when they turn on go to work quickly and crank up the watts on the power circuits. I have had a few years of wondering exactly what was a huge power hog at work. Power off then on and the spike was often 10,000w plus. Just occasionally that bit me.
The suspects:
- Hot water system
- Fridges- 4 of them. Two big vaccine fridges and two smaller bar fridges
- Elevator
- Computers 9 of them
- printers 7
- Lights- almost all LED
- 2 5000 w Victron inverter chargers
- Two 10kwh Redflow batteries
- A phone charge or similar - 6 or so
- Solar PV input upto 5.2kw
- Kettle, Microwave, toasted sandwich maker
- Air conditioning Splits systems. Multiple Mulitiheads and five single units up to 3.5kw heating/cooling ( Thanks Ian) Hint- they got turned off first and are not the answer
Hint -My two batteries and two 5Kwh Victron multi plus can cover peak loads above 10,000 watts for a short time when every thing is smiling. They batteries can suck in 5000 watts when charging. Power spike only occurs for several seconds when item or circuit is first turned on.
A 4 hours item by item testing last night finally solved it for me. Sparky and I both lost.
Rulz pick ONE Number 1 to 11 or type one answer for my power spike hog. First Correct post wins! Multiple guesses disqualified No questions sorry unless no correct answers in a week from now
OldBushie
Why are your batteries charging from the grid, or do they charge to a particular soc then pv tops them up?
How are you monitoring all loads?
ForumSage
The kettle
Super Moderator
3
Don't you have air con?
If you don't like trucks, stop buying stuff.
Wizard
Subscriber1.
2013 D4 expedition equipped
1966 Army workshop trailer
(previously SII 2.25 swb, SIII 2.25 swb & lwb, P38 Vogue, 1993 LSE 3.9V8 then HS2.8)
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Editing ThanksOriginally Posted by V8Ian
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Edit- Lift spikes to < 2000 w only
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They can spike to sub 4000w if we turn them on and being used- Sub 3000 w if all active. Almost no spike if power just turned on to the circuit.
Super Moderator & CA manager
Subscriber7 - Only based on peaks I used to see when working in Exchanges testing gensets. When first powered on the rectifiers would suck huge loads just for a short time after powering up. Complete guess though.
If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.
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Victrons pull or push whats is drawn tiny efficiency loss from AC/DC - DC/AC. they can take peak surges over 14,000 w for a short time but are not my problem in this instance or questions.
Victron units perform ‘loss of mains’ (“LOM”) detection and can in some instance blow back apparently
Not the issue for the quizz but very interesting in LOM as a possible other danger to my UPS set up.
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