Make your own berry solar cell

Explore how solar cells work by building one yourself using berry juice, conductive glass, titanium dioxide (a semiconducting material found in white paint) and graphite pencil. The solar cell mimics the way that plants capture light to create energy, by turning light from a lamp into electricity. Test how much power your cell produces and record your result on our leaderboard to see how it compares with others made during the day. This activity offers a simple insight into the chemistry behind solar energy and how researchers scale up similar principles in the lab.

Please note that at busy times, visitors may need to wait for the activity, and we reserve the right to pause entry temporarily if maximum room capacity is reached.