Use the power, distribution, and connectivity available at remote cell phone towers to provide the energy, data, and communications necessary to maintain and monitor a robust vaccine cold chain, thereby reducing preventable childhood deaths among the world’s most vulnerable populations. More than 2 million people worldwide die of vaccine preventable diseases every year. Energize the Chain (EtC) was founded to solve the missing link in vaccine delivery--the cold chain. Vaccines must be kept cold from manufacture to administration to be effective. Keeping vaccines cold is extremely challenging in the developing world, where power is unreliable at best, unavailable at worst, placing the most vulnerable populations at risk. Energize the Chain is creating economically and technologically sustainable energy infrastructure for the effective transportation and storage of vaccines. As mobile phone coverage blankets the globe, harnessing the energy of telecommunication towers provides the means to achieve this infrastructure. EtC envisions a world with universal access to effective vaccines and an end to senseless deaths from preventable diseases.