Off-grid household – 3kWp
We have started a new 3kWp solar system this week which will have 12 x 270W RenewSys panels connected to a 5kVA Victron EasySolar with 100A MPPT and a 10/7 Freedom Won lithium ion battery. Its taking up a tiny corner of the clients storage container and will feed the house, the farm and two pressure pumps. With the EasySolar unit, the remote monitoring system in built-in, so off-site monitoring will assist in ensuring the system is updated and running smoothly.
Grid-connected household with 2kWp solar This small home system sustains most of the household load with 2kWp on the roof and a 3kW EasySolar with built-in 70A MPPT connected to a Freedom Won 5/4kWh lithium ion battery. Victron’s remote monitoring system is also built into these units, allowing easy off-site monitoring of the system. The house reverts to mains power when the solar cannot provide enough.
Lithium ion upgradeThis 30kWh Freedom Won battery replaced a bank of 1600Ah (48V) lead acid cells. While not a solar installation (the batteries are charged daily from a generator), the lithium ion battery is able to be charged at a higher rate and, with its better recharging efficiency, we are able to reduce generator run time. To achieve this, there is a stand-alone 50A charger in addition to the 70A charger in the Multiplus 5kVA unit, giving 120A of charging capacity.
Lithium ion upgrade for a 3kWp solar installationWe upgraded this old lead acid pack (24V / 1400Ah) with a 10kWh (52V / 200Ah) lithium ion battery. Increasing the system voltage to 48V allows us to double up on the solar system without the need for any more charge controllers – there are two 70A controllers in place handling the 12 x 250W panels. Future plans are to add another 12 panels and another battery when more accommodation is added.The old battery bank in the yellow cases makes for an useful comparison
Off-grid house and cottage (8kWp) This 8kWp system feeds into a 16kWh BlueNova lithium ion battery through two Victron charge controllers. Power is provided by two 5kVA Victron Multiplus-II units. Remote monitoring with the Victron Colour Control unit is standard on such installations to provide real-time analysis and historical usage data.
Off-grid household – 1kWp (to start!) and now 2kWp as of November 2019This system has been designed to be upgraded, so we’re starting with 4 panels for now with the plan to upgrade to a 4kWp in future and as it grows. This is linked to a 3kW Victron Multiplus-II and a 5kWh Freedom Won lithium ion battery. In addition, it has a remote monitoring system to keep track of usage.This system has been upgraded with another 4 panels in November 2019
Off-grid household – 3kWpThis system operates a household out of town with no mains power. The off-grid system has a 3kWp solar array connected to a 10/7 Freedom Won lithium ion battery and linked to a Victron EasySolar 3kVA unit, complete with remote monitoring access.
Off-grid cottagesThis small system runs two off grid cottages. It has an 800W Victron Multiplus inverter/charger and 4 x 200Ah batteries (and a battery balancer). There are two such system on this remote farm running two sets of cottages.
Office backup (with some solar)This is a 5kVA office and workshop backup system with an 8kWh lithium ion battery from Blue Nova. For extended daytime outages, we’ve included a 1000Wp solar system on the roof.