SMA Flexible Storage System

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This system combines automatic load control with energy storage and gives flexibility to both new and existing PV systems as various size battery storage capacities are possible. Either lead-acid or lithium-ion batteries can be used to achieve maximum home power generation and the highest possible consumption of your own power.

Loads can be switched on or battery charged during times of peak generation and power taken from the battery at night or to meet power surges.

Both single phase and three phase systems are possible.

See: SMA Smart Home Planning Guide

The system consists of

  • A solar inverter - to connect the solar photovoltaic (PV) panels.
  • A Sunny Island inverter/charger - to convert 48 VDC (battery power) to 230V AC (grid power) and vice versa.
  • Sunny Island Speedwire data module for communication.
  • Batteries - to store the energy when it’s generated, for use when it’s needed. Lead acid or lithium ion.
  • Sunny Home Manager  & SMA Energy Meter for monitoring and control of the system - to make a more efficient system and give you information on the distribution of energy.
  • Cabling and switchgear - for efficient and safe operation

Typically a battery store of approximately 5kWh (~200 Ah 48VDC) usable storage might be required. AGM batteries are a good choice for low maintenance and safe installation in a house. Lithium Ion batteries offer optimum performance and space savings.

See:
Rolls AGM Batteries
Lithium Ion Batteries

SMA Logo SMA Smart Home Flexible with Sunny Boy and Sunny Island Final SMA Flexible Storage Solution

Sunny Island 3.0M/4.4M

Designed for rough ambient conditions for stand alone or grid back up operation. Rated to give a power output of 3.0kW or 4.4kW for 30 min.

  • IP54 protection to allow outdoor installation if required.
  • High efficiency (>95%);
  • Low standby & idle consumption (25W/4W);
  • Operating temperature range of -25 to +60 deg C.
  • OptiCool system ensures high power in high temperatures by cooling the encapsulated transformer but keeping air ventilation away from coated circuit boards & electronics to ensure high protection for humid or salty atmospheres.
  • Includes two free programmable relays per unit to enable load shedding or other use and timers to enable daily, weekly, or monthly functions.

Inverters are used with the Sunny Island Remote Control which gives a single point of operation. One Remote Control is required per cluster of up to three inverters and includes integrated MMC/SD memory card reader to enable updates, transferring of parameter settings, for storing error/events lists, or data logging.

In single-phase systems only one SI3.0M-11 or SI4.4M-11 can be used. Three-phase systems can be achieved using a cluster of three SI3.0M-11 or SI4.4M-11 inverters, multi-cluster systems are not possible with these inverters.

For larger single-phase or multi-cluster 3-phase systems please see the Sunny Island 6.0H/8.0H below.

SMA Sunny Island 6.0H/8.0H
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Product Code Description Retail Price
(ex VAT)
SI-3.0M-11 Sunny Island Inverter, 2.2 kW, 48V, 0-43A charger £1,948.72
SI-4.4M-11 Sunny Island Inverter, 3.3 kW, 48V, 0-63A charger £2,182.56
Product Code Rated power AC power for 30min/5min/3sec Maximum AC input power DC rated input voltage Maximum battery charging current / DC rated charging current Maximum efficiency Dimensions (WxHxD) Weight
SI-3.0M-11 2200W 3000W/3700W/5500W 11500W 48V 49A / 43A 95% 467mm x 612mm x 242mm 44kg
SI-4.4M-11 3300W 4400W/4600W/5500W 11500W 48V 75A / 63A 95% 467mm x 612mm x 242mm 44kg

Sunny Island 6.0H/8.0H

Powerful inverters with rated power outputs of 6kW or 8kW for 30 min. which can be stacked in clusters for higher power levels in both single phase and three phase networks. Systems up to 300kW are possible.

Includes all the features of the Sunny Island 3.0M/4.4M listed above, but in addition:

  • up to 3 units can be stacked in a single phase cluster
  • up to 36 inverters can be used in a Multicluster system when combined with MultiCluster Boxes

One Remote Control is required per cluster of up to three inverters. In stacked cluster or multi-cluster systems all settings are made at the main unit which gives automatic setting of parameters in slave units allowing easy programming and update.

SMA Sunny Island 6.0H/8.0H
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Product Code Description Retail Price
(ex VAT)
SI-60H-11 Sunny Island Inverter, 4.6.kW, 48V, 0-100A charger £2,494.36
SI-80H-11 Sunny Island Inverter, 6.0kW, 48V, 0-115A charger £3,001.03
Product Code Rated power AC power for 30min/5min/3sec Maximum AC input power DC rated input voltage Maximum battery charging current / DC rated charging current Maximum efficiency Dimensions (WxHxD) Weight
SI-60H-11 4600W 6000W/6800W/11000W 11500W 48V 110A / 100A 95% 467mm x 612mm x 242mm 63kg
SI-80H-11 6000W 8000W/9100W/11000W 11500W 48V 140A / 115A 95% 467mm x 612mm x 242mm 63kg

Sunny Island Remote Control

For use with Sunny Island SI-3.0M/4.4M/6.0H/8.0H. One remote control is needed per system and allows all settings to be made conveniently. Uses a self explanatory menu interface and rotary switch to give a single point of operation even in MultiCluster systems. Clear four line graphic display shows energy flow between the loads, battery and external energy sources together with battery state of charge status, events and errors.

  • Supplied cable 5m
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Product Code Description Retail Price
(ex VAT)
SI-SRC-20 Sunny Island Remote Control for SI-3.0M/4.4M/6.0H/8.0H £226.05

SMA Sunny Home Manager

The Sunny Home Manager is the ideal solution for simple plant monitoring and intelligent energy management. It provides remote monitoring via the SMA Sunny Portal and an overview of all the energy flows taking place in the household. It displays recommended actions and is able to control loads via SMA radio-controlled sockets automatically. The device learns the typical consumption pattern of the household and combines this information using a weather forecast prediction of the PV generation. As a result, the Sunny Home Manager enables a much higher proportion of generated electricity to be consumed on site and a highly efficient use of energy.

Can be used in conjunction with Mennekes Amtron car charging points to provide optimal charging of EV's.

SMA Sunny Home Manager
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Product Code Description Retail Price
(ex VAT)
HM-BT-10 Sunny Home Manager with Bluetooth wireless plant monitoring £285.81
HM-METERADAPTER Sunny Home manager adapter for meter optical interface £53.59

SMA Energy Meter

The SMA Energy Meter is a fast bidirectional single or three phase meter used to measure power going in/out of the grid. It communicates these values quickly via Speedwire using standard Ethernet cable to the Sunny Home Manager, or to the Sunny Boy Smart Energy.This, in turn, facilitates optimal energy monitoring, effective load and battery management and reliable active power limitation at the grid feed-in point while taking self-consumption into account.

63A rating - use with external current transformers for higher currents (see related products).

SMA Energy Meter
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Product Code Description Retail Price
(ex VAT)
HM-EMETER-10 SMA Energy Meter £296.21

SMA Radio Controlled Sockets

Operating the Sunny Home Manager in conjunction with SMA radio-controlled sockets adds the function to automatically activate individual electrical home devices. Based on individual user criteria, the Sunny Home Manager turns household appliances such as washing machines, dishwashers, or heat pumps via remote control on and off. Through this process, it is possible to increase self-consumption and monitor the load profiles of various appliances helping to single out any electricity guzzlers.

In addition, the Sunny Home Manager is compatible with the Miele@home system solution from the premium manufacturer based in Gütersloh, Germany. Devices within this system are equipped to be controlled directly without an SMA radio-controlled socket.

* Only European Schuko type sockets currently available.

SMA Sunny Home Manager and Bluetooth Socket
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Product Code Description Retail Price
(ex VAT)
HM-BT-SOCKET-10 SMA radio controlled socket with Bluetooth (Schuko) £107.18