The graphene is all scrunched up inside the layers of the supercapacitor, giving a huge area for storing charge. Arvio says this is possible because their supercapacitors use graphene, which is a sheet of carbon one atom thick.
This is more than 10 times better than a typical supercapacitor. But if we just look at the cells, Arvio states they have an energy density of 70 watt-hours per kilogram. With 3.55 kilowatt-hours of energy storage and a weight of 75 kilograms, the Kilowatt Labs Sirius supercapacitor module has a specific energy 2 of 47 watt-hours per kilogram. High Specific Energy For A Supercapacitor The self discharge rate of 5% over 25 days is excellent as I’d expect a normal supercapacitor to lose about half its charge over that time. Technical SpecificationsĪrvio sent me a sheet of technical specifications for the Sirius energy storage module and I have taken a screenshot of most of it and shoved it below: This is similar to a battery rather than the extremely rapid charging and discharging I would expect from a typical supercapacitor. This means it should take over 45 minutes, but the tech specs also say it can be charged or discharged at 300 amperes for short periods, so that may account for it. The claim that it fully charges or discharges in 30 minutes is interesting as its tech specs below say its maximum continuous charge and discharge rate is 100 amperes and its voltage range is 44 to 54 volts. But as heavy use for supercapacitors involves almost constant charging and discharging, which is not how home battery storage is used, Arvio may be confident there will be no deterioration in capacity over 10 years. It’s impressive even for a supercapacitor, which can be expected to fall to around 80% of its original capacity after 10 years of heavy use. The warranty is far better than any battery I know of.
The Arvio Independence DayĪs well as individual Kilowatt Labs Sirius modules, Arvio can provide an all-in-one supercapacitor storage system for use on or off-grid. This is far superior to the warranty of any battery on the market that I know of.
#Sirius 2.0 vs solar fire 9 full
The modules have a full 10 year warranty that promises they will suffer no decline in capacity in that time and allows for unlimited cycles. Three inverter brands specifically mentioned by name were Selectronic, SolaX, and Victron. Arvio says the supercapacitor modules can be used as drop-in replacements for batteries and will work with any battery or hybrid inverter 1. The supercapacitor cells are manufactured in China and the module is assembled in Dubai. So if you want to buy one retail you may have to look elsewhere. If you go to their site you can see the Kilowatt Labs Sirius module that stores 3.55 kilowatt-hours of electricity on sale for $4,950 including GST – here’s how it looks:īut GST may not be an issue because at the Smart Energy Conference in Sydney last month, Peter Wilson of Arvio said it would only be sold to trade, which means only to installers and wholesalers. As Ronald says at the end of the post: “…they are a new thing and sometimes new things have problems that aren’t apparent at first.” Buyer beware.Īustralian company Arvio is now selling a supercapacitor energy storage module. Personally I think the technology is too new to consider it in a residential application. Note from Finn: People have asked me if I would recommend buying a ‘super capacitor’ over a conventional battery. Will Super Capacitor Energy Storage Save The World?
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