What Inverter Size Do I Need
What size of inverter to do you need to power your adventures?
You’re planning your tiny home conversion, umming and ahing about what campervan inverter size you need. We get it, it can feel overwhelming to understand what’s right for you and the last thing you want is to run out of power.
The good news is, we’re here to help with this handy one stop guide to choose the right size of inverter to keep your bread toasting and microwave turning, all day long. Keep reading.
In this blog, we will look at:
If you would like to skip the reading, you can go straight to our Inverter Size Calculator.
Inverter size is directly related to which 230V appliances you want to use off grid in your campervan. You can size your inverter right now by following 3 steps:
Step 1 – Create a list of all the 230V appliances you want to use with your campervan electrical system. Next to each appliance, write down the watts (W) rating of that appliance.
Step 2 – Find out the wattage of the highest rated appliance that you plan to use and add a 20% buffer. Write down this value.
Step 3 – Take a total wattage of all your 230V appliances. Write down this value.
QUICK TIP – The Watts (W) rating of most appliances can be found on a sticker on the appliance, charger/power cable or product website page. See a list of common appliances and their wattage below.
Once all the steps have been completed, you will have two values.
Value 1: Based upon your highest rated appliance
Value 2: Based upon the total wattage of all your appliances
These two values will inform you on what inverter size you need for your campervan, giving you two options.
To calculate what Inverter size you need for your campervan, follow our example below or alternatively use our Campervan Inverter Size Calculator.
In this example we will be looking to use the following 230V appliances off-grid:
Following this example will give you two powers (W) to size your campervan inverter. Which one you pick depends on how you wish to use your appliances:
Inverter size 1 – Size your inverter using the highest rated appliance if you only need to use one 230V appliance at a time. Shown in step 2.
Inverter size 2 – Size your inverter using the total wattage of your appliances if you want to have unrestricted access to your 230V appliances. Shown in step 3.
We build our kits using Victron components. The Victron Energy Inverter specifications can be found on their website.
Important note: Victron Energy names their inverters using the power supplied under ideal conditions (VA). In reality, the real power output is slightly less than the name. For example, the 800VA Victron Inverter will provide 650W at 25℃.
We recommend sizing your inverter using the highest rated appliances, plus adding a 20% buffer if you would like to keep costs down and want to get as much time off grid as you can.
We recommend sizing your inverter using the total wattage of all your appliances if you are happy spending a bit more money and want to have unrestricted use of your 230V appliances.
Use our handy calculator to find out what campervan inverter size you need straight away. Choose the 230V appliances you want to use in your campervan and we will take care of the rest.
The calculator results will contain a link that takes you directly to an Inverter system that suits your style of adventure. Our Inverter systems come with all the wires, consumer units, fuses, lugs and heat-shrink you need to install in your campervan.
Alternatively, you can view our Victron Phoenix Inverters as stand alone items.
An inverter is a device that transforms DC voltage into AC voltage. Campervan leisure batteries store energy as a DC voltage, either 12, 24V or sometimes 48V. Your appliances that have a UK 3 pin plug (most of them) require 230V AC voltage to run – we call these 230V appliances. An inverter lets you power larger appliances on your adventure. If you want to take a laptop charger, hair straighteners or even a kettle for a cup of tea on those crisp mornings – you will want an inverter.
The watt (W) is a universal measurement for power – more specifically it is energy per unit of time. For those of you that remember physics at school, 1 watt is the equivalent of one joule of energy per second.
All electrical appliances will have a wattage rating. This is an important factor to consider when planning your van build. By thinking about what appliances you want to use in your van, we can help you build a campervan electrical system that is suited for your style of adventure.
Worried about wire and fuse sizes? Want your Campervan Electrical System to be designed by an expert? Look no durther. All our Inverter Systems come with all the wires, fuses, consumer units, lugs and heatshrink you need to install in your campervan…
If you already have all the extras, you can buy a Victron Energy Phoenix Inverter own its own.
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