The main thing to consider is the size of the network and the instruments required.
Twin analog diesel engine boat, where the owner is looking to overhaul the system, replacing the legacy equipment with modern NMEA 2000 devices. They need a GPS, AIS, MFD, and digitized Engine Data.
As with most electronic products, the price increases as the capability and features increase. This is pretty standard, and the marine industry is no different. However, this does not mean that you need the most expensive equipment to get good results.
In summary, the cost of renovating installing, or replacing legacy equipment is vast, depending on your requirements and personal preference & budget. It is achievable to upgrade your onboard electronics for around £2500 (including the cost of infrastructure products like cables and connectors to build your network). Don’t forget your minimum NMEA 2000 system requirements (2x Terminators @ approx £12ea; a power insertion T-piece @ approx £35; backbone and drop cables £-various).
There is a common misconception that upgrading to NMEA 2000 is unjustifiably expensive… hopefully, this article manages to highlight the cost-effective ways of building on a budget, by buying to your NEEDS, not your WANTS.
These totals are not fixed and are constantly fluctuating due to market supply and demand, but as a rough estimate:
Cost-effective simple system: £2500-£3500
Comprehensive system: £4000-£9000
Top of the range system: £15000+
