In April 2013, Joe joined forces with Community Enterprise Solutions (CES) in Guatemala, Dominican Republic and Haiti. CES distributes solar products for local business in Central America.
Joe instructed a 3-day workshop on Solar Energy for a class of 80 electricians at the Institution Univers in Ouanaminthe. The workshop covered the basics of energy, power, and circuitry for solar panels, batteries, charge controllers, inverters, and plug loads such as lighting, water pumps, and cell phone charging. The workshop also covered all aspects of repairing and troubleshooting solar products. At the end of the workshop Joe wrote down all the specifications of various solar equipment he found at a local hardware store and asked the class to work in groups to choose which equipment to use and to draw the system circuit.