On this build I do plan on having a DC genset to help charge the large battery banks. Any large AC loads will be run off inverters. As a parallel hybrid propulsion engine can be operated as a DC genset, is the cost of a straight diesel propulsion engine + separate genset more than the cost of a parallel hybrid? Not sure, as I haven't priced DC gensets, but here are a few of them (prices published on the internet if available).
|WhisperGen stirling engine DC generator. About $10,000+ (?)|
|Volvo diesel based 5.5kw DC generator. Cost? Not Sure, but green Volvos always cost a lot in my experience.|
|AmplePower DC Generator with smart controllers. 8.5kW. Cost $16,000|
As I haven't really calculated power requirements, I may be able to get by with dual high capacity alternators on the propulsion engine, the cost of which will very likely be cheaper than a hybrid (even after special brackets, pulleys and charge controllers).
|220 Amp 24v DC Alternator. Two of these would total about $3000 (without controllers).|