Callidus Prebuilt 3kVa Victron off-grid System & 4.8kwh of Lithium Battery. OG14

An off-grid power system is for those living or operating off-grid with no access to mains power. A Victron off-grid system is designed to supplement a generator to provide power more sustainably, store energy from the sun for later use and to offset fuel costs.

Key Components in the System

Solar Panels:

• These capture sunlight and convert it into electricity.
• Solar energy powers your home and charges the batteries during the day.

Battery Bank:

• Stores energy generated by the solar panels.
• Supplies power at night or when solar production is low (e.g., cloudy days).

Victron Inverter/Charger:

• Converts DC power from the batteries or solar panels into AC power used by household appliances.
• Manages the charging of batteries from solar or the generator.

Generator:

• A backup power source that kicks in when the solar panels can’t produce enough energy, and the batteries are depleted.
• Provides additional power during prolonged cloudy weather, winter, or high energy demand.

1. Victron Smart Controller:

• Oversees the entire system, ensuring power flows efficiently between solar, batteries, and the generator.

How the System Works

Normal Operation:

• During sunny days, solar panels generate power for immediate use and charge the batteries.
• Excess solar energy is stored in the batteries for use during the night or when the sun isn’t shining.

When Solar Isn’t Enough:

• On cloudy days or during winter, when solar production is low, the system uses stored battery power.

1. Backup Generator:

• If the batteries run low, the generator automatically starts (if enabled) to provide power and recharge the batteries.
• Once the batteries are sufficiently charged, the generator turns off, and the system goes back to using solar.

Why a Generator is a Good Backup

Reliable Energy During Extended Cloudy Periods:

• In regions like the UK, where sunlight hours can be very low in winter, a generator ensures you’re not left without power.

Covers Peak Loads:

• If your energy demand suddenly spikes (e.g., using heavy appliances), the generator can provide the extra power without overloading the system.

Battery Longevity:

• Running batteries down to very low levels frequently can shorten their lifespan. A generator prevents this by recharging the batteries when needed.

Peace of Mind:

• It ensures you always have power, even during unforeseen circumstances like prolonged bad weather or high energy demand.

1. Scalability:

• If you add more devices or appliances in the future, the generator can compensate for increased energy needs until you upgrade your solar or battery system.

The capacity of the Victron inverters (3kVA, 5kVA, 8kVA, 10kVA) determines the total load they can handle at a given time. Here’s a breakdown of the typical household or power requirements they might power, depending on the size of the inverter:

3kVA Inverter

Typical Applications:

• Suitable for small households or basic setups.
• Can power essential appliances:

Lights (10–15 LED lights)

Ceiling fans (3–5)

TV (1–2 units)

Refrigerator (1 medium-sized unit)

Laptop/PC (1–2 units)

• Load Limitation: Cannot support high-load appliances like electric stoves, air conditioners, or water heaters simultaneously.
• Total Load Capacity:
• ~2400W (assuming an 80% efficiency and typical 220-240V supply).

5kVA Inverter

Typical Applications:

• Suitable for medium-sized households.
• Can power a mix of essentials and a few high-consumption devices:

Lights and fans (as above)

TV, refrigerator, and a single air conditioner or washing machine.

Kitchen appliances like a microwave or kettle (if not used simultaneously with other high-power devices).

• Load Limitation: May struggle with simultaneous use of multiple heavy appliances.
• Total Load Capacity:
• ~4000W.

8kVA Inverter

Typical Applications:

• Ideal for large households or small commercial setups.
• Can power:

Multiple air conditioners (up to 2–3 units).

Refrigerator, lights, and fans.

Washing machine, microwave, and other kitchen appliances.

Entertainment systems and computers.

• Load Limitation: Can handle most residential needs but not all heavy appliances simultaneously.
• Total Load Capacity:
• ~6400W.

10kVA Inverter

Typical Applications:

• Suitable for large homes or offices with high power demands.
• Can power almost all household appliances simultaneously:

Multiple air conditioners (3–5 units).

Refrigerators, freezers, and kitchen appliances.

Electric stoves, geysers, or water heaters.

Entertainment systems and home automation setups.

• Load Limitation: Limited primarily by the battery bank or grid support.
• Total Load Capacity:
• ~8000W.

This is a complete Victron off-grid electrical kit and is prebuilt and programmed by Callidus and delivered to your door.

This Kit Includes

• 3kv Victron inverter charger
• High-quality lithium batteries, the number of batteries will depend on your kWh requirements,
• 4 kW Victron smart MPPT 
• Victron Color control
• Victron 1000 amp busbar
• Main Consumer unit with Generator in and RCD and MCB protection 230v electrical out
• Changeover switch 
• All DC Battery and solar isolators
• Battery leads

All built on an 18mm plywood board installed on a paint white heat resistant sheet.

It is expected that you will provide your own solar panels and this system is really designed to have 15-20 panels on it. However, Callidus can also offer your solar panels if you wish. give us a call and we can discuss.

preprogrammed and ready to be connected to the internet, if connected to an internet connection, Callidus can check the system has been set up correctly on site and make sure everything is working correctly.

This kit is ideal to provide power to a remote building, like offgrid houses, barns, etc. 

Callidus has provided thousands of solar and battery systems across the UK. This system is designed to offer 3 kVa of power where the grid isn't available. We will fully support you every step of the way. We take care to ensure that your system design is fit for your requirements so that your equipment produces the power you need when you need it.

We build our system to be fully expandable if required, and system components can be added to/expanded to meet your growth. The off-grid systems we design and build are always based around the customer's needs and requirements, to ensure that your off-Grid living is as carefree as possible.

We only use Victron equipment on our builds, and this is because they have a 45-year heritage in manufacturing quality equipment for the Off-Grid, Marine, Emergency Services and the Armed Forces, plus many more.

Callidus engineers are Fully Trained by Victron, and we have invested time and money in the quality training from Victron to ensure we provide you with the correct product for your needs.

All of our systems are built with the following 5 points in mind:

• Quality of equipment and Installation
• We can fully trust the equipment that we are designing and installing.
• Victron ensures all of its material is built to the highest standards to ensure that it doesn't just meet a requirement; it exceeds it.
• Victron equipment has been in the field for 45 years in the harshest environment & conditions.
• The Victron system offers a fantastic remote monitoring platform that only gives you a complete overview of your system, but allows it to be controlled from anywhere in the world if you have need support from Callidus or Victron

Each system is built to order and should be installed by somebody who is competent with electrical systems. If you need help on-site installing this system we are more than happy to carry out the installation for you, as we are fully trained NICEIC electrical contractors and have carryout many thousands of these types of installation. Please follow this link and we will be in touch to discuss.

Also if you would like a different system, please get in touch

https://www.callidus.co.uk/get-a-quote/ or call on 01626905454

Please see the video done by Victron about Callidus 

Images used in this advert a representation of what you will getting. These are Callidus stock images and many show larger or smaller inverter chargers etc than you will get. please refer to the description above.

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Tracked Delivery:

• Free tracked delivery via Pallet on all pre-built boards.

Collection:

• Free to collect from our warehouse.

Pre-Order:

• All of our boards are made bespoke for the customer. This process usually takes 1-2 weeks to assemble the boards. We ask customers to allow a 3 week window from date of order.

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