Home Battery Storage System for Existing Solar Array
- DIY kit that is designed to store excess power from an existing solar system.
- Store excess power that would normally be sent back to the grid to use later or overnight.
- Charge the batteries from cheap rate electricity from providers like Octopus Energy.
- Have reliable backup power in a power cut.
- Simple to install.
- Pre-programmed by us before it is sent out.
- Built in online monitoring system which can be used and controlled on a mobile phone.
How it works with a Solar system
When this Victron home battery storage system is set up to work with an existing solar installation, you would wire it into the mains and connect the blue CT clamp around the incoming supply. This CT detects the flow of power in and out of your property when there is excess solar the CT will detect this and allow the battery to charge. However, when there is no solar or little solar and power from the grid passes by the CT this will tell the battery to discharge and cover the load that the grid was supplying, this means that your bill will be reduced and your purchasing of electricity from the grid will be less
How this battery works with cheap rate electricity
If you don't have solar or even if you do have solar you can charge your battery from cheap overnight electricity using a smart meter or Economy7. This means that while you're asleep your battery system can come on automatically and charge from this cheap rate electricity and again turn off automatically, this is normally between 4 & 6 am. This would enable you to run your house on batteries for the remainder of the day depending on your usage.
Power during a powercut or blackout
Built into the Victron inverter charger is a secondary output which can be used in the event of a power cut to provide power from the batteries to keep your house powered with electricity to run things such as fridges freezers boilers and lights
Built into the Victron is a GX device, this GX device will plug into your Internet connection or connect to Wi-Fi and allow you to monitor and control your system from anywhere in the world. This gx device is controllable from your mobile phone or laptop and allows you to make settings changes and to enable and disable charging schedules. It would also allow Callidus to come onto the system remotely and check that it's working correctly once you have set it up.
The MultiPlus-II 5kva GX
Victrons New 48V Inverter/Charger With GX Inside
An Inverter/Charger with device networking built-in, the MultiPlus-II GX communicates with a solar charger, batteries, and other devices to control a grid-connected, off-grid, or remote power installation. Capable of parallel operation for increased power output, or battery charge-rates, the MultiPlus-II GX can also be configured for three-phase supply. A host of advanced features - such as uninterrupted power supply, setting load limits, and supplementing limited grid-power availability with battery power - can all be controlled straight from your phone or smart device. Remote monitoring is also possible.
The MultiPlus-II combines the functions of the MultiPlus and the MultiGrid.
It has all the features of the MultiPlus, plus an external current transformer option to implement PowerControl and PowerAssist and to optimize self-consumption with external current sensing (max. 32A). It also has all the features of the MultiGrid with built-in anti-islanding and an increasingly long list of country approvals.
Whats in the Kit
- Multiplus II GX 5000VA 48V
- Current Transformer
- 125A MEGA fuse
- MEGA fuse holder
- 2 x Pylon Lithium 4.8kwh Batteries (US5000)
- Battery Switch
- ET112 meter
- VE.Can to CAN-bus BMS Type B cable
- RS485 to USB interface cable
- Pylon battery long leads
The kit needs to be installed by a competent person.