The SMA Power Sets consists of optimally tailored components building a powerful and efficient AC-coupled photovoltaic off-grid system. They are suitable for a wide range of applications. Power may be supplied to remote homes, offices, hospitals or holiday residences.

The intelligent power management optimally uses the existing energy resources and ensures a maximum life time of the battery. Due to the robust design of the components these systems may also be operated even under extreme climates. Thus, a reliable power supply is guaranteed at all times and wherever it is needed.

The coupling of both, the power sources and consumers on the AC side allows for the utilisation of an already existing infrastructure and simplifies an on-site installation. Furthermore, additional energy sources, such as PV, wind and hydro power, fuel cells or chp plants may be easily integrated. Since - depending on weather conditions and the season - the full potential of the renewables will not be available all the time, fuel generators or any other AC source may be connected for backup power supply.

The various components at a glance!

Functional principle

The main component of the SMA Power Sets is the bi-directional stand-alone battery inverter Sunny Island. Together wit the battery bank, the Sunny Island creates an AC voltage grid into which all components - from electrical appliances to power generators - can be integrated. In order to increase the output of the AC grid, the entire system may be upgraded up to 6.6kW 1- and 3-phase by parallelling several Sunny Island 2224 inverters.

The Sunny Remote Control is required to put the Sunny Island battery inverter into operation and to inform the user about the current system status.

The solar generator is connected to the system on the DC side via the Sunny Island Charger. The controller is automatically adjusted by the Sunny Island inverter and thus guarantees an optimal battery charging.

The Sunny Island can also be combined with further energy sources by means of the Sunny Boy and Windy Boy inverters via the AC grid. Furthermore fuel generators can be connected to the system and controled by the Sunny Island in a particulary fuel-saving manner.

A DC fuse disconnector provides additional safety during installation as well as when operating the system.

System performance

The actual energy made available by the SMA Power Set depends on the geographic location of the installation site. In Central Europe, a constant solar power supply throughout the year is not possible, because of the poor insolation during winter months. According to the application it is recommended to reduce the consumption during these months or to use a conventional power generator to fill the gap. In Southern Europe, the seasonal variations are less distinct and, depending on the site of installation, the energy requirement may be covered entirely by solar power.

For example, the SMA Power Set XXS is ideal for providing energy to smaller remote holiday homes in Southern Europe. With a power output of 2.2 kW the system ensures the operation of all important AC consumers. The volume of usable energy that is made available by the 760Wp solar generator, amounts to 1.000 kWh a year, at an average global irradiation of 5kWh/m² per day. The battery capacity of 8.5 kWh assures a system autonomy between 2 and 3 days, depending on the energy consumed. We recommend the use of a diesel generator of min. 3 kW in order to make up for seasonal variations and to serve as a backup power supply.

Below, please find a summary of the performance data of the SMA Power Set XXS:

Power Output 1-phase* (230V / 50Hz) at 25°

2.2kW

6.6Wh

Photovoltaik peak power**

0.74kWp

4kWp

Battery capacity at 24V (C=20h)***

460Ah

	existing		possible extension

* 3-phase extension up to 6.6kW power output possible

** possible extension with the amount of Sunny Islands included by default

*** extension by connecting an identical battery bank in parralel possible, but not recommended!

Average daily available energy (Central Europe)

2.2kWh (ø 4.5kWh/m²/day)

1kWh (ø 2kWh/m²/day)

0.4kWh (ø 0.8kWh/m²/day)

Average daily available energy (Southern Europe)

2.9kWh (ø 6kWh/m²/day)

2kWh (ø 4kWh/m²/day)

1.2kWh (ø 2.5kWh/m²/day)

	Summer (April - Sept.)		Winter (Oct. - Mar.)		Month with lowest insolation (Dec.)

In any case, before buying this system, check carefully if your requirements are met, in particular if the power set matches the projected consumer profile. Please, also refer to our FAQs for further information or contact us directly.

Solar Generator Mounting Options

There are 3 mounting options available for the solar generator included in this power set. Please do not forget to specify the desired mounting option ordering!

Pitched Roof - Hook	Pitched Roof - Hanger Bolt	Flat Roof / Ground Mount
(tiles, pantiles)	(corrugated sheets, roofing felt)	(selectable elevation)
no surcharge	no surcharge	surcharge see option

Upgrades

The following accessories and upgrades are available for this power set. Be sure to choose each desired option when ordering!

Tubular Plate Battery Hoppecke OPzS solar.power

The OPzS single cell battery is a vented stationary 2V battery with liquid electrolyte (diluted sulphuric acid).

The batteries offer an extreme high cycling expectancy. Therefore these batteries are especially suitable for applications with high charge and discharge rates like photovoltaik off-grid power systems.

The OPzS single cells have a live expectancy of up to 20 years and a cycling expectancy of up to 1500 cycles with 80% depth of discharge.

For more information, please refer to the product page

surcharge see option

Questions & Answers

Which consumers may I operate? How long may I operate them? How long does it take to fully charge the battery? These questions and more will be answered in our FAQs.

Scope of Delivery / Technical Data

1x	Inverter/charger SMA Sunny Island 2224
	Type / system voltage	true sine / 24V
	AC continuous power	2200W
	AC peak power (<1 min.)	3800W
	Efficiency	max. 93%
	DC charging current (16.8 - 31.5V)	max. 90A
	AC input power (grid/gen.)	max. 5.75kW
	Own consumption / stand-by	21W / 6W
	Protection class	IP54
	Dimensinos (lxwxh)	445x470x185mm³
	Weight	19kg
	Special features	2 multifunction relays
	1x	SMA Sunny Remote Control SRC-1
	Max. length of cable	20m
	Dimensions (lxwxh)	140 x225 x65mm³
	Weight	0.4kg
	Protection class	IP20
	4x	GEL Battery Banner SBG 12-230
	Nominal voltage	12V
	Capacity (C=20h)	230Ah
	Dimensions (lxwxh)	521 x269 x203mm³
	Weight	70kg
1x	Rack for battery bank
	Type	plugable steel rack with acid-proof coating
	Layout	2-stage
	Dimensions (lxwxh)	646x690x834mm³ (with batteries)
	Weight	36.4kg
1x	MPPT Charge Controller Sunny Island Charger 50
	System voltage	24V
	PV power	max. 1250Wp
	PV current	max. 40A
	DC input voltage	max. 140V
	Optimal MPPT voltage range	40 - 80V
	No. of MPP tracker	1
	Battery voltage range	16 - 31.5V
	Battery charging current	max. 50A
	Display	multicolored LED
	Protection class	IP65
	Dimensions (lxwxh)	310x421x143mm³
	Weight	10kg
4x	Solar module Suntech STP190S-24/Ad+
	Type of cells	monocrystalline
	Peak power (Pmax) / nominal voltage	190Wp / 24V
	Voltage at Pmax (Vmp)	36.5V
	Current at Pmax (Imp)	5.2A
	Dimensions (lxwxh)	1508x808x35mm³
	Weight	17.2kg
	Special features	pre-mounted 4mm² connecting cable with RADOX plug socket
1x	Module Connection Box MCB-06
	No. of string inputs / cable cross section	6 / max. 6mm²
	Output cable cross section	max. 25mm²
	Overvoltage protection	disk varistors (delta connection)
1x	Mounting system for solar generator
	Type of installation	pitched roof / flat roof or ground mount*
1x	Battery circuit breaker BS-25
	Connection / Type of fuse	3-pole / 160A (NH00)
	Mounting option	surface
	1x	Cabling
		Module connecting cable to MCB (4x4m)	H07RNF 6mm² + H+S RADOX adapter set
Module main connecting cable (2x10m)		H07RNF 10mm² + end sleeves
Inverter connecting cable (2x1.2m)		H07RNF 35mm² + ring terminals
Solar charger connecting cable (2x1.5m)		H07RNF 10mm² + end sleeves / ring terminals
Battery connecting cable (2x2m)		H07RNF 35mm² + ring terminals
	*see article options / subject to change without notice