GreenHop: Open source PUE continuous monitoring for small and medium data centers

This paper presents the GreenHop solution, focused on energy and environmental monitoring in small and medium size Data Centers (DCs). The solution enables the DC administrator to monitor the DC PUE (Power Usage Effectiveness) and maintain the environmental parameters in compliance with standards and good practice guidances. The solution is applied in a case study, showing the consumption of the cooling equipment when setting the DC operating temperature on 18°C, 23°C, 25°C, and free cooling. Thus, we identified an improvement on PUE and reduction of power consumption as a result of the adoption GreenHop monitoring solution.