Robert Bagnefski

Solar PV panels have left homemade wind turbines behind, and even very efficient manufactured wind turbines don't come close.  The days of the Savonious Rotor are long past, you can get used solar panels that are being replaced with more efficient solar panels, and spend your time and energy on something that takes no maintenance and will last for.... Well the first ones are still working,  so no one really knows how long they could last.  Check out the Midwest Renewable Energy Association for more information on both Wind and Solar.  

Asparagus will tolerate a salty soil, a very unusual trait.  If asparagus is the only planting in the raised bed that could work well for you. Consider Rodale's Organic Encyclopedia recommendations which talk of using salt, not for weed control, but for the health of the plant:

"For healthy asparagus, add sodium chloride rock salt (NaCl) to beds more than one year old. Apply 2.5 lb. per  per 100' row either before spears appear or around July 4. Research shows this treatment helps asparagus resist crown and root rot diseases caused by Fusarium fungi and also improves overall growth. Don't use iodized table salt or rock salt made of calcium chloride (CaCl). Pickling salt, however, is fine for the job."