Solar Battery Storage Comparison Table

 

Product Name	LG Chem Resu 10	LG Chem RESU 6.5	Redflow Zcell	SimpliPhi PHI3.4 Smart-Tech battery	SunGrow SBP4K8	Leclanche Apollion Cube	Soltaro 2	Soltaro 4.5	GCL E-KwBe 5.6	Arvio Sirius Capacitor Module	Delta Hybrid E5	Sonnenschein @ Home Lithium	ELMOFO E-Cells ALB52-106	Akasol neeoQube	BYD B-Box LV	Fronius Solar Battery	PowerPlus Energy LiFE series 48V	DCS PV 10.0	DCS PV 13.5	SolaX 3.3	SolaX 6.5	BMZ ESS3.0	Pylontech US2000B	Aquion Aspen 48S-2.2	Tesla Powerwall 2	Trinabess Powercube	SolarWatt MyReserve Matrix	Hybrid "Home" Plus	Hansol AIO 10.8	Hansol AIO 7.2	VARTA Pulse 3	VARTA Pulse 6	Enphase AC Battery	Magellan HESS	Sonnenbatterie Eco 9.43	Opal Storage	Senec.home Li 10	ZEN Freedom Powerbank FPB16	SolaX Power Station	Sunverge SIS	Alpha-ESS ECO S5	Fusion Power Systems Titan-3
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In Depth Analysis?	Yes, here.	Yes, here.	Yes, On-grid and Off-grid.	Yes, here.	Not yet.	Not yet.	Not yet	Not yet	Yes, here.	Yes, here.	Not yet.	Not yet	Not yet.	Not yet.	Yes, here.	Not yet.	Not yet.	Yes, here	Yes, here	Not yet	Not yet	Not yet.	Not yet.	Yes, here.	Yes, here.	Not yet.	Not yet.	Not yet.	Yes, here.	Yes, here.	Not yet	Not yet	Yes, here.	Not yet.	Yes, here.	Not yet.	Not yet.	Not yet.	Not yet.	Not yet.	Not yet.	Not yet.
Battery Type	Lithium-Ion (NMC)	Lithium-Ion (NMC)	Flow (Zinc-Bromide)	Lithium-ion (Lithium Iron Phosphate)	Lithium-Ion (NMC)	Li-Ion (NMC)	Lithium Ion (Lithium Iron Phosphate)	Lithium Ion (Lithium Iron Phosphate)	Lithium-Ion (NMC)	Graphene super capacitor with a lithium ion electrode	Lithium-Ion	Lithium-Ion (NMC)	Lithium Ion	Lithium Ion (Lithium Iron Phosphate)	Lithium-ion (Lithium Iron Phosphate)	Lithium-ion (Lithium Iron Phosphate)	Lithium-Ion (Lithium Iron Phosphate)	Lithium-Ion (Lithium Iron Phosphate)	Lithium-Ion (Lithium Iron Phosphate)	Lithium Ion (NMC)	Lithium Ion (NMC)	Li-Ion (NMC)	Lithium-ion (Lithium Iron Phosphate)	Aqueous Hybrid Ion	Lithium Ion (NMC)	Lithium Ion (Lithium Iron Phosphate)	Lithium Ion	Lead Crystal	Lithium Ion	Lithium Ion	Lithium-Ion (lithium-mananese-cobalt-oxide)	Lithium-Ion (lithium-mananese-cobalt-oxide)	Lithium Ion (Lithium Iron Phosphate)	Lithium-Ion (lithium-mananese-cobalt-oxide)	Lithium-ion (Lithium Iron Phosphate)	Lithium Ion	Lithium-Ion (lithium-mananese-cobalt-oxide)	Lithium-ion (Lithium Iron Phosphate)	Lithium Ion (NMC)	Lithium-Ion (Lithium Iron Phosphate)	Lithium-ion (Lithium Iron Phosphate)	Aqueous Hybrid Ion
All In One unit?	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	No	Kind of. Includes AC battery inverter but requires solar inverter.	Kind of. Includes AC battery inverter ("Powerbox") but requires solar inverter.	Kind of. Includes battery inverter (black "Command" unit) but requires solar inverter.	Yes	Yes	Yes	Yes	Yes	Yes (includes microinverter – requires 1 Envoy-S comms unit per install)	Yes	Kind of. Includes AC battery inverter but requires solar inverter.	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Price excluding installation (Estimated Retail pricing in AUD incl. GST, unless stated otherwise)	$7,655	$5,807	$12,600	$4,700	$3500	$9200	$1,700	$4,200	$3,650	$4,686	$6,600	$10,109	$8,190	$12,000	$8,734	$15,550	TBD	$8,900	$9,990	$5,390	$6,864	$7700	$1,999	$2,200	$9,600 (includes "Telsa Gateway")	$9,790 (includes $550 charge for extended Powerbox battery inverter warranty)	TBD	$11,000	$13,540	$11,550	TBD	TBD	$2,000 (fully installed)	$20,600	$16,500	$12,000	$15,202	$21,750 (fully installed)	$11,616	$26,000 (Fully installed)	$12,375	$13,750
Nominal Storage	9.8kWh	6.5 kWh	10 kWh	3.4kWh	4.8 kWh	6.7kWh	2kWh	4.5kWh	5.6kWh	3.55kWh	6kWh	8.5kWh	5.5kWh	5.5kWh	10.24 kWh	12kWh	3.3 kWh	10.42kWh	13.52kWh	3.5kWh	6.8kWh	6.74kWh	2.4kWh	2.2kWh	14 kWh	9.6kWh	11kWh	9.84kWh	10.8 kWh	7.2 kWh	3.3 kWh	6.5 kWh	1.2kWh	12.8 kWh	15kWh	13 kWh	10 kWh	16 kWh	13 kWh	11.6kWh	14.4 kWh	8kWh
Usable Storage Capacity	8.8kWh	5.9 kWh	10 kWh	3.4kWh (or 2.75kWh if you are cycling at 80% DoD as per warranty document)	4.56 kWh	5.4kWh	1.8kWh	4.05kWh	5.6kWh	3.55kWh	4.8kWh	6.8kWh	4.4kWh	4.95kWh	9.8 kWh	9.6kWh	2.48kWh	10.42kWh	13.50kWh	3.3kWh	6.5kWh	5.4kWh	1.92kWh	2.2 kWh	13.5 kWh	8.64kWh	11kWh	8.2kWh	9.72 kWh	6.48 kWh	3 kWh	5.85 kWh	1.2kWh	11.52 kWh	13.5kWh	11.7 kWh	10 kWh	14.4 kWh	12.35 kWh	9.86 kWh	12.96 kWh	8kWh
Pros	Can be used in both off-grid and hybrid setups, compact size, modular expansion.	Can be used in both off-grid and hybrid setups, compact size, modular expansion.	Safe chemistry (low fire danger compared to lithium ion batteries), high depth-of-discharge, can tolerate temperatures up to 50 degrees C, easily recycleable, Australian owned & developed	American made, can be used in both off-grid and hybrid setups, compact size, modular expansion, 10 year warranty, very high cycle life, BMS integrated into each battery	Simple setup for multiple batteries; One-click online firmware update; Robust BMS provides multi-protection at both cell level and system levell; Smart hibernation technology to maintain battery state of health;	German made, high quality solar battery storage, plug and play with SMA sunny island, expandable up to 12 modules	Modular Design, IP65, Expandable	Modular Design, IP65, Expandable	Low cost, comes in multiple colours, lightweight	Unlimited cycles in warranty period, no capacity degradation at 100% DoD	Module made in Japan. Can be used in both off-grid and hybrid setups, modular expansion (up to 2 batteries per inverter). System, cell and cabinet have multiple safety features.	Cabinets can be stacked in parallel for up to 102 kWh of storage	Can be used in both off-grid and hybrid setups, capable of a high rate of discharge, easy expansion,  intelligent BMS (Battery Management System), developed in Australia using Kokam cells	German made, high cycle life and depth of discharge, 10 year warranty	High cycle life, high power output	High cycle life, good power output	Australian designed and engineered.	Australian engineered, rebuildable design, super charging capable BMS, wide operating temperature range, very high cycle life, IP67 fully sealed design	Australian engineered, rebuildable design, super charging capable BMS, wide operating temperature range, very high cycle life, IP67 fully sealed design	Price includes Solax SK-SU5000E inverter, batteries made by LG	Price includes Solax SK-SU5000E inverter, batteries made by LG	High quality German made battery, plug and play with SMA sunny island, expandable up to 12 modules, and high 8kW continuous discharge power + surge.	Safest Lithium Chemistry, Scalable, Integrated BMS, good cost-per-kWh	Great price-per-kWh, modular, environmentally friendly disposal, inherently safe chemistry (low fire risk compared to lithium ion), also available in a 24V version (Aspen 24S-83), which enables use of lower cost inverters and chargers.	Advanced safety features minimise fire risk, extremely competitive price, impressive warranty	Designed to be retrofitted to existing solar panel installations, scaleable	Designed to be retrofitted to existing solar installations, scaleable	Unique technology, inherently safe battery chemistry	All in one with Samsung batteries. Easy to install.	All in one with Samsung batteries. Easy to install.	Ease of installation	Ease of installation	Simple installation, easy to add more batteries to increase storage capacity.	Australian owned and developed, Reposit Ready, has backup capability, rugged design for Australian environment, can be expanded to up to 19.2 kWh	Made in Germany,  long cycle life, great warranty	Fast installation, Reposit ready, has backup capability if grid goes down, LG Chem battery technology inside, all DC and AC protection devices prewired	Made in Germany, 100% DoD, long cycle life	Good power output, designed for totally off-grid usage	TBD	Has backup capability if grid goes down, extremely high surge power (8.5kW for 30 minutes), very long lifespan.	High cycle life and depth of discharge, relatively compact size battery.	Environmentally friendly disposal, inherently safe chemistry (low fire risk compared to lithium ion), high depth-of-discharge
Cons	Battery is warranted to 45ºC ambient	Battery is warranted to 45ºC ambient	Heavy. Question mark over DC-DC roundtrip efficiency (~80%). Requires a maintenance cycle once a week or so that takes the battery offline for a few hours.	Relatively expensive	Only compatible with the Sungrow SH5K hybrid inverter	Supported by limited number of inverters	TBD	TBD	Low cycle life	TBD	Designed to work only with Delta's E5 inverter, no warranty document available	Expensive, compatible with limited range of inverters	No warranty document available	Only compatible with SMA inverters, expensive, no warranty document available	High power output is limited by solar inverter	Can only be installed indoors, relatively short warranty compared to other lithium-ion batteries, expensive. 3 Phase only,	TBD	TBD	TBD	Only compatible with SolaX inverters, cannot connect with SolaX 6.5 batteries	Only compatible with SolaX inverters, cannot connect with SolaX 3.3 batteries	Supported by limited number of inverters	Only 5 year warranty, currently only compatible with SolaX Power Hybrid inverters and Redbacks.	Heavy, low power output compared to lithium-ion unless many battery stacks are purchased and linked together (increasing overall costs).	Long wait times. Like 6 months long.	$550 extra charge to apply the full 10 year warranty to the Powerbox battery inverter	10 year warranty does not include Command battery inverter	Relatively low cycle life compared to other battery types, heavy	The system, apart from the batteries, only has a 5 year warranty.	The system, apart from the batteries, only has a 5 year warranty.	Very tight ambient temperate operational range	Very tight ambient temperate operational range	Very low power output per battery	Heavy, expensive initial cost, battery performance and DOD is benchmarked against a low temperature (25 deg C)	Relatively low power output – max 3.3kW	TBD	Relatively low power output (2.5kW)	Battery warranty is 10 years but the control system is only warranted for 5 years	Heavy	Heavy	Heavy	Very heavy
Weight	75kg	52kg	290kg	38 kg (per individual battery module)	48kg	95kg per module	33kg	38kg	47.5kg	73kg	75kg	97 kg	41kg	62kg	205 kg	176kg	39kg	97kg	125kg	25.5kg	44kg	95kg	27kg per battery	118kg per stack	125kg	95kg	140kg	300kg	239 kg	194 kg	45kg	65kg	25kg	~260kg	200kg	240kg	150kg	TBD	235 kg	300 kg	180kg	614kg
Power	5kW steady, 7kW peak (3 seconds)	4.2kW steady, 4.6kW peak (for 3 seconds)	3kW steady, 5kW peak	1.5kW steady (48v version) 0.75kW stead (24v version)	3kW	3.3kW steady, 6.5kW peak	2kW per module	4.5kW per module	3kW steady	4.8kW steady, 12kW peak	3kW steady	7kW steady (limited to 5kW on grid)	5kW steady, 40kW peak	5kW	10 kW steady	4kW steady	TBD	5.12kW continuous / 10.24kW peak (10 mins)	7.5kW continuous / 15kW peak (10 mins)	3.2kW	6.5kW	8kW steady, 16kW 3sec peak	2kW continuous per module (stacks with each additional module)	0.68kW steady, 1kW peak (stacks with each additional 2.2kWh pack)	5kW steady, 7kW peak (10 seconds)	3kW steady	2.5kW-4kW steady, 4kW peak	3kW steady, 5kW peak	6.6 kW steady	6.6 kW steady	1.6kW	2.5 kW	260W per battery (stacks with each additional battery)	5kW steady	3.3kW	4.6kW	2.5kW	5kW	4.6kW	5kW steady, 8.5kW peak	5kW steady	3.5kW steady
Dimensions (WHD)	45cm x48cm x 23cm	45cm x 65cm x 12cm	50cm x 115 cm x 100cm	34 cm x 35 cm x 20 cm	51 cm x 56 cm x 19 cm	67cm x 53cm x 47cm	41cm x 38cm x 18 cm	41cm x 58cm x 18cm	53cm x 17cm x 70cm	60cm x 20cm x 53cm	55 cm x 59cm x 20cm	64 cm x 46 cm x 49 cm	37cm x 23cm x 32cm	46 cm × 46 cm x 28 cm	62cm x 172cm x 32 cm	57cm x 95cm x 61cm	62cm x 43cm x 8cm	45cm x 91cm x 28cm	52cm x 96cm x 30cm	33cm x 44cm x 11cm	58cm x 44cm x 11cm	64cm x 45cm x 42cm	44cm x 9cm x 41cm	33cm x 93 cm x 31cm	115 cm x 75 cm x 15cm	60cm x 100cm x 21cm	38 cm x 23 cm x 26 cm (per Myreserve unit)	60 cm x 140 cm x 40 cm	140 cm x 28 cm x 120 cm	140 cm x 28 cm x 120 cm	60cm x 69cm x 19cm	60cm x 69cm x 19cm	39cm x 32.5cm x 22cm	70cm x 180 cm x 65cm	67cm x 186cm x 23cm	75cm x 155cm x 41cm	53cm x 112cm x 40cm	80cm x 180cm x 58cm	75 cm x 157 cm x 36 cm	86cm x 186cm x 36cm	60cm x 116 cm x 60 cm	81cm x 185cm x 70cm
Round Trip Efficiency	95%	95%	80%	98%	95%	97%	97%	97%	95%	96%	96%	95%	96%	98%	TBD	>90%	TBD	98%	98%	95%	95%	97%	TBC	90%	90%	94%	92%	92%	90%	90%	TBD	TBD	96%	97%	95%	95%	95%	TBD	94%	96%	95%	94%
Off-grid Capable?	Yes	Yes	Yes	Yes	Yes	Yes, with Sunny Island or Struder inverter/charger	Yes, depending on inverter	Yes, depending on inverter	Capable, but designed for on-grid	Yes	Yes	Yes	Yes	Yes	TBD	Yes	TBD	Yes	Yes	Yes, but only with off-grid products approved by LG	Yes, but only with off-grid products approved by LG	Yes, with Sunny Island	EPS capable with SolaX Power inverters	Yes	Yes	TBD	TBD	Yes	Yes	Yes	No	No	No	No	TBD	Yes, Emergency Power Supply for backup up to 4kW	Backup only	Yes – designed specifically for it	Back-Up Capability (Not for Off-Grid)	Designed for on-grid use, but grid-backup option available for $899	Yes	TBD
Designed for indoor or outdoor installation? (IP rating)	Indoor/Outdoor (IP 55)	Indoor/Outdoor (IP 55)	Can be installed indoors, but outdoor installation is recommended (IP 43)	Indoor (IP 32)	Indoor/outdoor (IP 55)	Indoor (IP 21)	Indoor/Outdoor (IP65)	Indoor/Outdoor (IP65)	Indoor (IP54)	Indoor (IP unknown)	Indoor/outdoor (IP 55)	Indoor (IP21)	Indoor (IP 21)	Indoor (IP 50)	Indoor/Outdoor (IP 55)	Indoor (IP 20)	Indoor (IP40)	Indoor/Outdoor (IP 67)	Indoor/Outdoor (IP 67)	Indoor (IP 20)	Indoor (IP 20)	Indoor (IP 21)	Indoor (IP 20)	Indoor (IP 22)	Indoor/Outdoor (IP 67 for battery and electronics,  IP56 for wiring)	Indoor/Outdoor (IP 54)	Indoor (IP20)	Indoor/Outdoor (IP 55)	Indoor (IP 54)	Indoor (IP 54)	Indoor (IP33)	Indoor (IP33)	Indoor (IP 20)	Indoor/Outdoor (IP 54)	Indoor (IP 30)	Indoor/Outdoor (IP54)	Indoor (IP 30)	TBD	Indoor/Outdoor (IP 54)	Indoor/Outdoor (IP 54)	Indoor (IP 21)	Indoor/Outdoor (IP 56)
Operating temperature range	-10°C to 45°C	-10°C to 45°C	10°C to 50 °C	0° to 49°C	-10°C to 45°C	0°C to 45°C	-20°C to 55°C	-20°C to 55°C	-20°C to 50°C	-10°C to 55°C	0°C to 50°C	0°C to 45°C	0°C to 45°C	0°C to 40°C	0°C to 50°C	5°C to 35°C	0°C to 55°C	-5°C to 45°C	-5°C to 45°C	-10°C to 45°C	-10°C to 45°C	0°C to 45°C	0°C to 50°C	-5°C to 40°C	-20°C to 50°C	-10°C to 50°C	0°C to 30°C	1°C to 40°C	-10°C – 45?C	-10°C – 45?C	5°C to 30°C	5°C to 30°C	-20ºC to 45ºC	0?C – 45?C	-5°C to 45 °C	-10°C to 45°C	0°C to 40 °C	TBD	-10°C to 45°C	-20°C to 50°C	0°C to 40°C	-5°C to 50°C
Warranty	60% capacity at 10 years or 30,000 kWh throughput whichever comes first	60% capacity at 10 years or 20,000 kWh throughput whichever comes first	Warranted total energy throughput 36.5MWh or a maximum of 10 years, whichever comes first.	10 years	10 years	7 years	10 years	10 years	7 years and 75% nominal capacity. (87% after 2 years)	10 years	10 years	10 years	10 years – if registered and connected to the E-Cells portal. If not, warranty is 5 years or 4,000 cycles, whichever comes first	10 years	10 years	5 years if battery purchase is registered with Fronius within 30 days, otherwise 2 years.	TBD	10 years	10 years	10 years	10 years	10 years	5 years product warranty	5 years full warranty, 3 extra years partial warranty	10 years	10 years	10 years for battery, 5 years for Command unit	5 years, optional extra 5 year warranty	5 year full warranty, 10 year battery performance warranty	5 year full warranty, 10 year battery performance warranty	7 years	7 years	10 years	5 year inverter warranty, 10 year battery warranty	10 years or 10,000 cycles, whichever comes first	5 year inverter warranty, 10 year battery performance warranty	10 years	5 year inverter warranty, 10 year battery warranty	5 year inverter warranty, 10 year battery warranty	10 years	5 years product warranty, 10 years battery performance warranty (extendable to 20 years)	8 years on full system including enclosure, inverter, charge controller and batteries
Warranty Document Supplied?	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes	No	Yes	No	No	Yes	Yes	No	Yes	Yes	Yes	Yes	No	No	No	Yes	Yes	No	No	Yes	Yes	No	No	Yes	No	Yes	Yes (Cabinet, battery, inverter)	Yes	No	No	Yes	Yes	No
Spec sheet supplied?	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	TBD	TBD	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	TBD	Yes	Yes	Yes	Yes
Compatible with what hybrid inverter brands? (Non-All In One units only)	SolaX, SunGrow, Redback, Goodwe, Ingeteam, Selectronic	SolaX, SunGrow, Redback, Goodwe, Ingeteam, Selectronic	Victron, Goodwe, Selectronic, Redback, Telco	Any inverter than can handle 48 volt lithium batteries.  (Less powerful 24 volt version also available.)	Sungrow	TBD	SolaX, Sofar, Most CANBUS BMS	SolaX, Sofar, Most CANBUS BMS	Goodwe and Sungrow	Any inverter with voltage control for 45 to 54V operation	Delta inverters only	SMA and Selectronic	TBD	SMA only	Goodwe, Victron	Fronius only	TBD	Any inverter than can handle 48V	Any inverter than can handle 48V	SolaX only	SolaX only	TBD	SolaX, Redback, Sungrow	Selectronic, Redback, Solax, Goodwe, Outback, Schneider, Fronius, ABB	TBD	Trina's PowerCube battery inverter only	TBD	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
AC or DC coupled? (All In One systems only)	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	AC coupled	AC coupled	DC coupled	TBD	DC coupled	DC coupled	AC coupled	AC coupled	AC coupled	AC coupled	AC coupled or DC Coupled with 3-phase hybrid variant	DC Coupled, can turn to AC Coupled using Reposit	AC coupled	AC coupled	DC coupled (Primary) AC coupled (Optional)	AC coupled	AC coupled	TBD
Total warranted kWh (1 cycle per day)	24,300	16,100	36,500	11,177	TBD	13,797	6,570	14,782	11,994	12,957	12,600	25,000	16,060	18,067	25,600	17,520	TBD	38,033	49,275	9.600	19,200	19,710	3,504	4,015 (based on 5 yr warranty)	37,800 (assuming most people will want to use 'other applications' such as off peak charging and Reposit)	22,450	TBD	14,965	34,300	22,600	7,665	14,946	4,161	21,024	49,275	40,000	36,500	26,280	TBD	35,989	23,652	23,360
Cost per Total warranted kWh (1 cycle per day)	$0.31 (+ inverter cost)	$0.36 (+ inverter cost)	$0.35 (+ inverter cost)	$0.42 (+ inverter cost)	TBD	$0.67 (+ inverter cost)	$0.26 (+ inverter cost)	$0.28 (+ inverter cost)	$0.30 (+ inverter cost)	$0.36 (+ inverter cost)	$0.52 (+ inverter cost)	$0.40 (+ inverter cost)	$0.51 (+ inverter cost)	$0.66 (+ inverter cost)	$0.34 (+ inverter cost)	$0.89 (+ inverter cost)	TBD	$0.24 (+ inverter cost)	$0.20 (+ inverter cost)	$0.56	$0.36	$0.39 (+ inverter cost)	$0.57 (+ inverter cost)	$0.55 (+ inverter cost)	$0.25 (+ inverter cost)	$0.31 (+ inverter cost)	TBD	$0.74	$0.74	$1.07	TBD	TBD	$0.48	$0.98	$0.34	$0.30	$0.42	$0.83	TBD	$0.72	$0.52	$0.59

We plan to update this table frequently as more business and home energy storage systems become available, and specs and prices of existing solar batteries change.

Please note that system pricing is our best estimate of retail prices incl GST, unless specifically noted otherwise. But it is only an estimated cost. 

Please read this if you are not 100% certain what a kWh is, or the difference between a kW (kilowatt) and a kWh (kilowatt-hour): What does kWh stand for?

Usable Storage Capacity (kWh)

The energy stored in a solar battery system that can actually be used. In most cases this is less than the nominal storage capacity.

For example, the Enphase AC battery has a total storage capacity of 1.2kWh. But as only 95% of that stored energy can be discharged (aka a 95% Depth Of Discharge) they battery's usable capacity is really 1.1kWh.

Battery Power (kW)

A solar battery's power is how fast it can be charged or discharged.

For example, an Enphase AC battery is a low power battery system (also known as an 'energy' battery) because it takes 4 hours and 23 minutes to discharge all its usable energy, while the BMZ ESS is a high power battery because it can discharge all its usable energy in under 40 minutes.

A high power home battery system isn't necessarily more desirable than a low power battery – your household's unique energy usage needs will determine how much power you will require from a solar battery and the best energy storage solution for you.

All In One Unit

This means the system includes batteries, a battery management system (BMS), and an inverter. The Sunverge SIS is one example of an all-in-one storage system.

If a battery management system and/or inverter have to be purchased separately, this will add to the total cost of the system.

Warranty Document Supplied?

Links to a warranty document if it is available.  Don't buy a solar battery system until you have read the latest release of the warranty document direct from the supplier. They change often and we can't guarantee the linked version we provide above is the latest.

Total Warranted kWh (1 Cycle Per Day)

If you only discharge the battery once per day (most likely for larger solar batteries in residential situations) then the warranty period may expire well before the warranted kWh are all used up.  

The number of kilowatt-hours (kWh) a home battery system can discharge per day is multiplied by the number of days in the warranty period to get the figures for this row.

Cost Per Warranted kWh (1 Cycle Per Day)

This is the solar battery price (excluding installation) divided by 'Warranted kWh (1 cycle per day)'. If you discharge the battery approximately once per day, this number indicates what energy storage system may be the most cost effective in your circumstances.

A Note On Battery Warranties

Some solar batteries in the table have different warranties for components within the unit. For example, some "All in one" battery storage systems warrant the batteries for 10 years but the internal inverter only has a warranty of 5 years.

We use the 'weakest link' warranted figure (so in the above example, 5 years instead of 10 years) when calculating the cost per warranted kWh.

Disclaimer: We are only human. Although we try really hard to review the information in this comparison table up to date and accurate, mistakes could have been made and prices and other figures can go out of date quickly. Check with battery manufacturers before making any solar storage purchase decisions based on information provided this table.

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