It would be nice to go green but it needs to make sense money wise. We have a 1,300 square foot home on the beach home with plenty of sun. Our electric bill is 100 bucks a month give or take. How much will Solar panels cost and how many solar panels will we need to effectively power our home.
You could easily knock 40 percent or more from your power bill by using a manual on off switch on your electric hot water heater and check efficiency of any electric refrigerator and or freezers.
Like you say, your place is on the water, wind power would be the best way to go because of onshore winds which would get you up and running for much less than solar and likely be good 24 / 7 rather than daylight only.