X-Hybrid FAQs Your questions answered.

Inverter

Is the X-Hybrid a dual MPPT inverter?

Yes.  All models sold in the UK are dual tracking inverters.

How many hybrid inverters can I install on a single phase?

You can only install one X-Hybrid inverter per phase.  You can however install a hybrid inverter in parallel with a standard string inverter.  For example, on a 10kW system you could install one SK-SU5000 in parallel with a SL-TL5000T.

What is the inverter warranty?

The X-Hybrid has a standard 10 year warranty.  Batteries are covered by a separate manufacturers warranty.

Batteries

What battery options are available?

The X-Hybrid is compatible with the LG Chem RESU, the Extra 2000 from Pylontech and the new 4.8kWh battery from SolaX.  The system is also compatible for 48V lead acid batteries however SolaX do not currently supply lead-acid battery options in the UK.

What is the maximum number of batteries that can be installed?

Battery sizing is subject to a number of variables, and it is important that the storage capacity is not oversized as battery charging is subject to the amount of surplus energy, and on smaller systems there may not be enough surplus to ensure that the batteries go through regular, healthy charge cycles if the battery capacity has been oversized.

Pylontech Extra 2000
Each battery unit has a capacity of 2.4kWh. This is a scalable solution, the minimum number of batteries that can be installed on a X-Hybrid system is two. The maximum, for the SK-SU3000/3700/5000 with integrated 50A charger is five, however in typical circumstances we would not recommend more than three batteries for the SK-SU3000, or four batteries on the SK-SU3700.

LG Chem RESU 6.4EX
This is a 6.4kWh battery contained within a single unit. There are 3.2kWh expansion packs available, and the maximum number of expansion packs that can be added to 6.4EX is two, taking the total capacity to 12.8kWh, but again we advise caution when sizing batteries for smaller systems.

SolaX Battery
The is a single unit 4.8kWh battery that is compatible with all single-phase versions of the X-Hybrid. This solution is not scalable.

Can batteries be charged from the grid?

Yes, however this feature is not available for customers who have registered for the feed-in tariff – unless an approved two-way meter is installed that reduces the energy generated by the amount imported from the grid.

Can the batteries be set to charge and discharge at set times?

Yes.  This feature is available when the inverter is set to ‘Force Time Use’ mode.  The default mode is ‘Self-Use’ and this is recommended, however if there are specific requirements in terms of charge/discharge this feature can be activated.

Batteries - LG

What are the settings for the LG battery?

Minimum capacity: 10%

Charge cut voltage: 58.1V

Discharge cut voltage: 45.2V

Max charge/discharge current: 42A

How should the LG BMS cable be installed?

A BMS cable is supplied with the battery.  The end with pins 1&2 configured should go into the BMS port on the inverter; the end with pins 4&5 configured should go into the battery.

Do the LG batteries have a built-in DC fuse?

Yes.  You are not required to fit an external fuse.

Batteries - Pylontech

What are the settings for the Pylontech battery?

Depth of discharge: 20%

Charge cut voltage: 53.5V

Discharge cut voltage: 48V

Max current: 40A (2 batteries), 50A (3-5 batteries)

Do the Pylontech batteries have a built-in DC fuse?

No.  An external 63A double-pole breaker is required.  This is supplied by SolaX.

Batteries - SolaX Battery

What are the settings for the SolaX battery?

The SolaX battery will be available from September 2016. The configuration information will appear here soon.

CT Clamp

Where is the CT clamp fitted?

The CT clamp is placed on the incoming line conductor.

Is the CT clamp directional?

Yes.  There is an arrow on the CT clamp and this should be pointing in the direction of the grid.

Can the CT cable be extended?

The cable supplied is 15m long.  You can install a cable up to 25m length.  You can use a standard ethernet cable should you need to lengthen the cable run beyond 15m.

Is there a wireless CT option?

No.  In order to prevent potential signal loss, we only supply a wired option.

EPS (Emergency Power Supply)

How do I wire the EPS?

Please refer to the video opposite for wiring instructions.

Is it an automatic or manual switch?

We provide a manual changeover switch.  This provides for greater control over the deployment of stored energy.

Wi-Fi Monitoring

How do I set up the WiFi connectivity?

Please refer to the video opposite.

Was is the maximum range?

There is no defined maximum.  Any WiFi connection is subject to range restrictions – and these can be influenced by a variety of eternal factors.  To test whether WiFi connectivity will be possible prior to install, try standing in the location where the inverter will be installed and use a smart phone to see if it can see the customer’s WiFi signal (but this is not a guarantee and should only be used as a guide).

Do I have to use WiFi for monitoring?

No.  You can connect the inverter to the router using an ethernet cable.  This may not be practical in some instances, so an alternative might be to use a device such as the TP-LINK Powerline.

Monitoring is also available using a Smartphone or tablet using the app in ‘local mode’ – however it will not be possible to monitor the inverter remotely with this option.

Is WiFi connectivity covered under warranty?

No, however the inverter will be replaced under the exchange programme if it is proven that the WiFi adaptor inside the inverter is faulty.  If the inverter is emitting a WiFi signal but no data is being received to the cloud, then this will fall outside the terms of the warranty.  The WiFi connectivity is subject to external factors such as range, and relies on the correct configuration of third-party devices such as routers, factors that are beyond the control of SolaX.

The FAQs opposite and video below are for reference purposes only.  It is a requirement for installers to attend the SolaX training course (www.solaxuk.co.uk/training) before attempting to install a battery storage system using the X-Hybrid inverter.