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Product pictures for illustrative purposes only.
Product pictures for illustrative purposes only.
This pack contains
Peak power output | 5kW |
Usable battery energy* | ~3.6 Units (kWhr) |
Solar Array Size | 4kW |
Average daily solar production* | ~20 Units (kWhr) |
Max instantaneous power from battery only | ~5kW |
*Subject to many external factors
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Lithium-ion batteries have the advantage over traditional lead acid in that they can be cycled many times more and can be discharged deeper while maintaining a decent battery life.
If you're serious about going solar, then lithium-ion is the only way to go.
Please see the pack content below for a breakdown of the components included in this kit.
For those not overly familiar with solar power, this kit can store around 3.6 Units of electricity in the batteries.
This means that at night when there is no sun, you could watch a 200W TV for about 18 hours before the batteries went flat (200W x 18 hours = 3600Whrs = 3.6 Units of electricity)
OR
you could run 72 x 5W LED globes for 10 hours (5W x 80 x 10 hours = 3600Whrs = 3.6 Units of electricity)
OR
a 2000W kettle for an 1.8 hours straight (2000W * 1.8 hour = 3600Whrs = 3.6 Units of electricity) *Not sure why you would do that but who knows?*
OR
any combination of the above that adds up to 4 Units.
During the day, the solar panels can produce up to 4 kW's in full sunlight (8 x 500W = 4kW). Assuming 5 full "sun hours" in a day, you would produce up to 20 units of electricity. The panels will first charge the batteries and after that will add whatever power they can produce to your grid, so you may be able to run off up to 100% solar power during daylight hours, depending on weather conditions. At night, the batteries will discharge until they reach a defined, pre-set level.
Specific References
If using this system as an off grid with a generator input to inverter instead of eskom, (for those cloudy days) would a 3kv generator be sufficient? Rated 2.3kw, does the generator input to inverter have to be pure sine wave?
Hi Russell. A 3kW generator is sufficient to charge the batteries in a couple of hours. The input voltage of the inverter is very wide (170Vac - 280Vac). Standard generators automatically produce a pure sine wave (although how "clean" each specific one is we can't say).
Hi there. Quick question, with the Kodak/Pylontech Lithium Ion Solar Kit - 5kW does this system switch over automatically from grid to solar and visa versa? And if not is there an extra switch available that can be integrated to allow for this?
Hi Jacques, Yes, absolutely, no user intervention required!
Hi, if I plan to build up this kit, can I start with the inverter and one battery? I will use grit power to charge the battery through the inverter to provide back up power during load shedding. I'm planing on adding the PV panels and more batteries as I'm expanding the system in future. Can this be done, one inverter, one battery to start with having a backup when its load shedding. Kind Regards Frans
Hi Frans, yes you can start with just the inverter and a single battery.
Hi. Please could you clarify what type of inverter is included in this kit: Will this inverter allow for the PV electricity to be fed back in to the municipality grid, and, if so, why is the cost of this kit one significantly cheaper than the other Kodak hybrid inverters that are on your site. Also, does the kit come with a comprehensive installation manual written in good English (not badly translated Chinese!) as I would want to self install. I've not installed a PV system before but have self-built houses and self installed complete domestic wiring systems before and understand the fundamentals of electricity.Regards Paul (I live in WIndhoek, Namibia).
Hi Paul. The inverter is the one indicated just above these questions, namely the Kodak MKSII. You cannot back feed the grid with this inverter as it is not bi-directional. The instruction booklet is a good one and we are available for support during office hours during installation. Electrical installation needs to be done by a licenced wireman.
Hi, I see in the datasheet that the inverter lists max PV array open voltage as 450VDC, the datasheet from the sharp 330w panels state an open voltage of 45.96V. So am I correct in saying that for this kit: the most efficient and safest installation would be to have 9 panels in series, with 1 panel in parallel, or was the intention to have 10 in series then rely on tolerances?
Hi Alexander, no the kit is designed to split the panels into 2 sets of 5 in series.
Hi, is the inverter pure sine wave or modified? Presumably the kit can't be connected to electrical appliances with an element - i.e an electric geyser - or stove?
Hi Hilton, we don't sell modified sine wave inverters, only pure sine wave. The inverter can output a max of 5kW at any moment in time. You can connect anything that doesn't exceed that. The batteries and the panels will determine HOW LONG you can run the load for.
Can one combine 2 of these systems in to one giving 10kW ?
Hi Len, yes the MKSII can be paralleled to achieve this
Hi. How long do the batteries take to charge and do they charge from the solar whilst I'm using solar power? Can they also be charged from the grid should there be no sun? Many thanks
Hi Michael, each battery can accept a maximum charge of 25Adc (x 50V) = 1250W, therefore at max solar charging you could recharge them in 2 hours (to 95% say)
You can also charge them with grid power depending on how you set the inverter up.
Hi what is the maximum number of batteries that can be connected in parallel, to extend the available hours using the above scenario, thanks, Tim
Hi Tim, you could add up to 6 US2000 batteries on this system.
Hi Team. I already have 4 Panels. (320w) Can I add these to the system with another Li-ion Battery?
Hi Steven, yes no problem with doing that.
Hi. Will my whole house supply be running through this 5kw inverter and limit me to 5kw max consumption?
Hi Shaun. The inverter will only give 5kW output, correct. You can have an electrician split the board so that you don't exceed the backup output (e.g. take the geysers and aircons off the backup). Or you can parallel two or more inverters together to get more output power.
What is the guarantee on these units?
Hi Andre. Inverter, 2 years, panels 10 years plus 25 year performance warranty, batteries 10 years (with registration). All warranties are manufacturer warranties.
Hi there Does the Axpert MKS II 5K operate where if the load exceeds the inverter rating it will bypass and supply grid power? So, for example, the oven (4000w) and a kettle (2000w) are run at the same time will the inverter supply grid power or will it trip? Thanks Miles
Hi Miles, it will trip. You would need to look at a high-end Victron (also on this site) for that functionality.
Good Day, I'm looking at your Off-grid/hybrid Lithium-Ion Solar Kit - 5kW system Can one add another 2x Pylontech Pylon US2000B unit so four in total? This will purely be for load-shedding purposes and not totally off-grid Will the combo be able to pull a fridge and chest-freezer with the normal LED lights and TV's
Hi Hein, yes the inverter is powerful enough to run those appliances simultaneously.
This product is listed under 'DIY' - I consider myself to be a very competent DIYer but need to know specifically what skills are required.
Hi David. 90% of the job is physically fixing the panels to the roof, running the cable to the inverter and hanging the inverter on the wall. The minor part is connecting the system to your DB which must be done by a qualified electrician.
Hi I need a 5kw complete off-grid system I don't see a charge controller in the off-grid kits pls give me a quote.
Hi Dylan, the inverter in this kit has a powerful solar charge controller built-in. If you want to do your own framing and mounting we can send you a quote without that portion included.
Does the kit include the required ICC software and connection cables etc for the Raspberry Pi to control the charging of the Pylontech batteries?
Hi Willie, yes it does.
Does this hybrid inverter really have grid-tie capabilities? ("... will add whatever power they can produce to your grid"). I have one of these (an older version perhaps), and it most definitely cannot do that. It is also not indicated in the spec sheet included on your product page.
Hi. Yes, it does, this is a newer model. Please look here for a test we did recently:
https://www.solar-shop.co.za/content/11-axpert-voltronics-power-use
Why is there a raspberry pi in the picture?
Hi JC. It's because it is the hardware platform that houses an aftermarket software product that interfaces between the inverter and the Battery Management System on the Pylontech (since the Axpert's cannot communicate natively with the Li-ion batteries). It was developed locally and sells worldwide,
Excuse my ignorance but, after having some bad experiences with load shedding & the many power failures in my area, exactly how quickly does the changeover between grid & solar occur ?? Do the chances of losing appliances etc. due to load shedding, spikes & or frequent power outages still exist with the Hybrid system ?? Many Thanks. Rgds Kevin
Hi Kevin. It's between 10 - 20ms. Too quick for your appliances to notice.