This more substantial system features 900W of panels and can generate up to 946kWh per year in the UK or 1636kWh in southern Europe. Great for club houses, welfare units, small houses, cabins and much more.
Based on nine of our great value Eoplly 190W solar modules and the high-performance Outback 80A MPPT regulator, this system has a 500Ah @ 24V battery capacity to keep you going when the sun is not shining.
A top-of-the-range Mastervolt 2.5kW pure sine wave inverter will power all but the most power-hungry appliances. A sophisticated battery monitor is included so you can keep an eye on the system status.
For the UK market, the system components meet MCS standards. If you are opting for a feed-in tariff eligible installation you will require some additional components and the system must be installed by an accredited electrician. Please contact us to discuss your requirements or for any advice on MCS accreditation for off-grid PV installations.
The system comprises:
This system is suitable for DIY installation if you are not opting for feed-in tariffs. We are happy to advise on details of the installation process, but the basic steps are:
Full instructions and documentation will be provided with the equipment.
We have tried to make this system as simple to install and as safe as possible. Safety features include DC fuses and disconnects. But if you are in any doubt whatsoever consult a qualified electrician.
The system in use
The battery meter will give a constant display of battery voltage, current in or out of the batteries and an estimation of their state of charge. Generally speaking, you should try to keep the batteries above 12.2V at all times (roughly 40% on the state of charge meter).
If the battery voltage falls too low, the inverter will first sound a warning alarm at 10.5V, then will cut out at 10V to prevent permanent battery damage. If this happens, be sure to let the batteries recover to at least 75% charge (approx 12.6V) before using the system.
The regulator has 24V output terminals with an automatic low-voltage cut off - this is ideal for running 24V appliances that are always left on, for example a fridge or an external light on a motion sensor. These terminals can supply up to 45A at 24V, but you can also connect your 24V appliances direct to the commoning points on the main board if desired. Use an appropriate fuse and note that 24V consumption will not be metered, and hence you will not receive the feed-in tariffs for this proportion.
When the system is not being used or when leaving the building unattended, it is recommended that you turn off the inverter to save power. However, there is no need to turn off the DC disconnect switches, as the system can be safely left to charge indefinitely without attention.
This system is based on a modified sine wave inverter. These are cheaper than pure sine wave inverters, but they can occasionally cause problems with some appliances. In particular, microwaves, dimmer switches and some electric motors may under-perform, flicker or run noisily. If you would like to swap the inverter for a sine wave model just let us know!