The 18th Annual Tucson Solar Potluck was held on May 8, 1999, at Catalina State Park.

Some of the homemade solar cookers were larger than their owners.

Solar cookers were used throughout the day to prepare small food items to be given away as samples to curious onlookers.

Cupcakes were baked in this solar cooker and then given away as samples.

Several of the solar cookers on display were so large they had to be transported to the potluck on trailers. This Sam Irwin Solar Chef, built in the 1970s, has been used at previous potlucks to cook two 16 pound turkeys at the same time. The cooking time on the turkeys was approximately 5 hours.

A large PV array was deployed at the park to supply electricity to the stage...

....where musicians entertained throughout the day.

At 5 pm solar chefs began removing their potluck dishes from ovens and placing them on the food tables. As participants piled their plates high with food, another solar potluck came to a successful end.