I have a 27 foot class C RV 30 Amp service. I am looking for options and estimated cost.
Hi Robert. See here: https://www.victronenergy.com/where-to-buy
Look for your closest Victron dealer or installer. They should be able to help you determine your options and cost. Your question is beyond the scope of this forum.
Contact a registered Victron professional in your area for detailed information!
In short, depending on your current equipment, you may have several options (PV, generator, shore power, or combinations of these).
To determine this, you need to know what is already installed — i.e. the sources (PV, generator, etc.) and the consumers (lighting, heating, water, etc.).
You can then prepare an energy balance using your data (what consumes how much power and for how long) to determine the amount of power you need per day. You will then need to calculate how many days you must be able to manage your consumption without recharging. That will determine the battery capacity you need to plan for. It is also important for your planning to consider when you want to travel (summer, winter), where you are going (polar regions, tropics), and whether you are planning longer stays in the motorhome. Among other things, this determines whether you will need to heat or cool more, and what you will generally require.
Some additional reserves need to be allowed for.
All of this feeds into your system design, which would be best planned and implemented together with an electrician or another specialist company with Victron training.