Bloomberg Businessweek: These Cell Towers Run on Solar Power
"Off-the-grid cell towers from Telefónica SA, Spain’s largest telecommunications company, bring internet and cell service to remote areas without wired connections. Half the world’s population remains offline, according to the UN Broadband Commission for Sustainable Development...Telefónica brought its first reliably 24-hour gridless cell towers online in Peru late last year. They serve 25,000 people in the Amazon rainforest, according to Clear Blue Technologies International, which makes the control systems. Perez says customers there pay no more for service than in grid-connected areas."
Read the article about how Clear Blue is powering cell towers in remote areas of Peru in partnership with Telefónica.