San Francisco City Government Takes A Step Closer To Using Biodiesel:

This experience has forced me to revisit my thoughts about institutional resistance to change. MUNI, San Francisco's public transportation agency, has a particularly challenging environment. MUNI consumes around 6 million gallons of diesel fuel each year. They have several yards, each with their own fuel tanks. Buses can start any given day at one yard and end the day in another. So the idea of starting some buses on biodiesel is impractical, as it is very difficult to know where any given bus will be on any given day.

Further complicating matters, MUNI has a policy that all fuel tanks must be at least 75% full at all times. This is San Francisco after all and we do have earthquakes, so the City must be prepared at all times with reserve fuel. This policy has a few implications. First, in the ideal world, you would empty and clean a tank prior to switching over to biodiesel. If you have to maintain the tank at least 75% full at all times, you can never empty and clean a tank. Second, biodiesel is still a young industry. Supply is not consistent enough to guarantee that you will be able to maintain tanks at least 75% full at all times. Accordingly, provision must be made to supplement with diesel when biodiesel is not available as delivery must be made every day to maintain the required fuel level.

The largest tank farm is comprised of four 20,000 gallon below ground tanks. These four tanks are interconnected, creating in essence one 80,000 gallon tank. It is very likely that the tank contains sediment. Cleaning out the sediment prior to switching to biodiesel will obviously be a challenge. Doable, but a challenge.

Then there is the topic of politics. I will grant you that San Francisco is a more political City than most, but I believe the lessons learned here are generally applicable elsewhere. The push to use biodiesel has been both a bottom-up and a top-down phenomenon. From the bottom-up have been the people running the alternative fuels program and the local biodiesel community. From the top-down have been the Mayor and his Department of the Environment. What has been missing is support from those on the front line, the fuel managers, mechanics, drivers and their immediate bosses.

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