A quick answer to frequently asked questions related to SMA and our Reseller Digital River.
If you choose an SMA extended warranty, we provide prompt support at no cost even after the 5-year manufacturer's warranty expires. The extended warranty includes the following services:
We have two steps:
Digital River GmbH is the authorized reseller and merchant of the products and services offered within this store.
Digital River GmbH
+49 (0) 221 310 880
See more at http://www.digitalriver.com/
You can pay using Credit Card, Paypal or by Invoice.
A warranty code is a receipt for your purchase of a warranty extension. SMA will store this code with the data of your string inverter.
The serial number and the device type are printed on a label that is stuck directly on to your string inverter.
A quick answer to frequently asked questions related to solar installations and SMA products.
The current inverters in our portfolio which are applicable to the G83/2 regulation will receive the new certification via a firmware update.
Specifically the following inverters are compliant with the new G83/2 certificate:
All discontinued products (e.g. Sunny Boy 1200) will not have a valid firmware update available.
All Sunny Boy and Sunny Tripower inverters fulfill all the regulations and specifications applying to them and are below permissible thresholds.
Unfortunately the conversion of Direct Current into Alternating Current cannot take place completely silently. Therefore SMA does not recommend installation directly in the living area.
In periods when the inverter does not feed energy into public grid (if the solar irradiation is not sufficient or at night) it switches off, in this state no noise is produced.
Temperatures in loft spaces can be high in summer months, things to consider:
The Sunny Boy 3000/3600/4000/5000TL-21, the Sunny Tripower 5000/6000/7000/8000/9000TL-20 and the Sunny Tripower 10000/12000/15000/17000TL-10 all have two independent MPP trackers.
Sunny Boy and Sunny Tripower inverters come with an overvoltage protection category III (according to IEC 60664-1). For a higher protection the standard Sunny Tripowerxx000TL-10 inverters can be retrofitted with a DC surge arrested type 2.
Sometimes. The distribution grid operator must be asked whether the transformer the customer is connected to has an earthed neutral point. If that is the case, a Sunny Island system can be installed.
Yes, the Sunny Island will charge the battery via the mains so that you will also have a backup system even if the power is interrupted or there is a mains supply failure.
The Sunny Island inverter will use the sensed frequency of the AC waveform to adjust the output power of the SMA inverter (‘Frequency-Shift Power Control’, in SMA terminology) so that no surplus of power ends up entering the system. Once I start using more energy on the consumer side, the output power of the SMA inverter will automatically increase again.
Yes, the SMA Sunny Island can be used in all solar inverters, especially if they are equipped with a frequency-regulated power output solution (‘Frequency-Shift Power Control’ in SMA terminology). The Sunny Island backup system can also be used in inverters that do not have Frequency-Shift Power Control (a frequency-regulated power output function). The Sunny Island inverter will immediately switch off the PV inverter to prevent any surplus in power from damaging the system.
Yes, the Sunny Island 3.0M-11 and Sunny Island 4.4M-11 were added to our product portfolio in November 2014.
For reasons of safety and standards is it mandatory to install a grid disconnect box if you wish to use the Sunny Island in backup mode. This applies in all countries and for every system size. Without a grid disconnect box the Sunny Island will not receive the necessary feedback and therefore not start in back up mode.
No, it is a backup system. In the event of grid failure, the Sunny Island inverter will switch off (as will the PV inverter, if present). The Sunny Island will transmit the signal to the disconnection board to disconnect the complete installation from the public electricity grid. Disconnecting from the network will take about 5 seconds. From that moment on, the Sunny Island will itself create a 230 V 50 Hz network in house. When the Sunny Island notices that electricity is being supplied once again by the electricity company, it will synchronise with it and switch back over to the public grid automatically and without interruption.
A Sunny Island inverter is a single-phase device. It is unable to create three phases, meaning the Sunny Tripower will not work during backup.
One Sunny Island battery inverter can only create a single phase, which can possibly be split in the grid disconnect box to be built. This will allow all connected single-phase consumers to receive power during the backup period. To also provide three-phase consumers with energy, three Sunny Island inverters will have to be installed. These will supply energy in accordance with the necessary phase shifts of a three-phase connection.
The Sunny Island battery inverter will determine the amount of power that can be simultaneously withdrawn from the batteries, or in other words, the number of devices you can simultaneously power. The bridging time is determined by the usable capacity of the batteries. The larger the battery bank, the longer you will be able to work in backup mode.
The planning guide lists the requirements for lead-acid batteries or lithium-ion batteries. If you wish to use different batteries, you can ask the battery manufacturer or SMA if they are compatible.
No, SMA only sells through its distribution partners. They can also provide you with the batteries and the necessary material for the grid disconnect box.
SMA Service can help you with commissioning. You can hire a technician for the commissioning of your system.