Bloons Wiki
Bloons Wiki
Monkey Scientists have found a way to use their beacon and radar technologies in a special way to create a powerful arcing nexus atop the Monkey Village. Such power can only be harnessed via the Energy Concentration Cells.
~ Offical BMC description

Energy Concentration Cells is a Special Building required for research of the High Energy Beacon upgrade. It costs City Cash40,000, takes 2 days to build and gives 500 XP when completed. It consumes Lightning thing-0.png40 and a 1x1 tile space. It requires Level 20 to unlock.