I have been running various diesels on SVO for 15 or so years.
I do not recommend bio or blended unless no way to avoid them.
The first decision has to be a veggy friendly engine.
The older the better. 90's and earlier are better with less electronic controls and simpler injection systems.
My best experiences have been with 1991 vw's, 1991Mercedes 300D turbo diesel, and a 1994 Dodge 12 valve 5.9 turbo diesel. They all run fine all summer with a little diesel, kerosene, or gasoline added.
The only real problem is viscosity.
They can run year round if the engine and fuel are kept warm enough. The temperature varies with engines but probably above 60F or 70F.
My Dodge is too big for your needs tuned for 400 horses. Even the Mercedes is probably too big. I think VW'S are 40-50 horses and very efficient. And they are every where. You just need to figure out how to drive a generator.
So for MANY REASONS I recommend you put your veggy generator in a warm place as close to your basement as possible and spend your money to do that instead of an over priced generator.
A shed housing an outdoor furnace could be ideal. You might want to put your batteries there too.
And you might want to run your generator when you are using the most power directly from the generator if it is big enough to do so while charging the batteries. That would be the most efficient.
I also recommend some solar panels. They are getting cheap and half of the cost of the system is batteries and charge/inverter system.
Don't fall for expensive heating system scams that heat the fuel tank. HOW MUCH WARM FUEL DO YOU NEED? You might use a gallon or 2 a day very slowly.
Also DC wires lose more power over distance so they MUST be kept as short as possible. So it would best if the generator, batteries, inverter, charge controller, and if applicable solar panels are all together.
The first step is a lot of planning including how you can reduce your demand on the system like solar or wood heated water and reducing or eliminating refrigeration, AC and heating, or freezers, water pumps, and cooking. They are the biggest loads.
I also use veggy in some tractors including a compact 3 cylinder Massey Ferguson 1120. I bought a generator head to run from the PTO.
Good luck,
