One cost comparison of going green in Wisconsin: a local pizzeria decided to invest $40,000 in four Volkswagens that run on either biodiesel or SVO (the article isn't exactly clear on this point) and now saves between $250 to $500 a week because they don't have to pay anyone to haul off the restaurant's waste oil. They just put it into their delivery vehicles. And if we use $375 as an average weekly saving, the store will recoup its investment in just over two years. After that, perhaps they'll tip the delivery folks a bit more each trip.
Another reason to shift to biodiesel: by mid-June, a Madison-based biodiesel fuel co-op hopes to be selling locally processed biodiesel to its members in June for around or under $3 a gallon. When summer's gasoline price spikes kick in, that'll sound awfully sweet. [Source: Wisconsin State Journal, Image Credit: Wisconsin State Journal]