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 solarThis 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 comparisonOff-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 2019Off-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.