It depends on how big an off-grid solar system you are going to build, usually an off-grid solar system consists of the following parts:
· Off-grid solar inverter
· Solar Panel
· Solar panel bracket
· DC and AC circuit breakers
· Connectors and cables
Of course, this is only the cost of hardware, if you need to ask the installation company, it may also needs to spend some fees.
If you need to build a small off-grid solar system, you only need 1000W inverter, and our latest Hestia series 1000W off-grid solar system kit will be very suitable. It integrateds with a 40A MPPT solar charge controller, 1000W pure sine wave inverter and 12.8V 100Ah LiFePO4 Battery. The 40A MPPT solar charge controller can support a maximum of 600W solar panel input in the state of a 12VDC system, and our unique design will allow you to additionally expant 3 sets of the 12.8V 100Ah LiFePO4 battery. The total battery capacity will reach 5.12KWh.
Hestia series off-grid solar system is currently the most suitable system for DIY, the build-in 40A MPPT can support 12VDC/24VDC/48VDC battery system, and the maximum power of the inverter can be matched with a 2000W pure sine wave inverter. If you have enough hand-on ability, we can configure a 48VDC 2000W pure sine wave inverter, so that the entire system will become a 48VDC system, the build-in 40A MPPT solar charge controller will support the largest solar panel input to 2000W. And for the build-in 12.8V 100Ah LiFePO4 battery, we have reserved an interface, which can connect 3 BL-1280 battery in series externally to make the whole system achieve 48VDC. BL-1280 battery can support a maximum charging current of 1C, if you have a 2000W solar panel, it will fully charge the battery in 2.5 hours. 2000W pure sine wave inverter can meet most loads, this is completely a DIY design, and teh combination you like will give full play to its perfromance. Even if you need to upgrade in the future, you just need to repurchase the inverter module.