nLine
Public Data

Access high-resolution power quality and reliability measurements from nLine's sensor networks deployed across Sub-Saharan Africa, monitoring both urban grid infrastructure and healthcare facility electrification.

Our datasets include GridWatch measurements from Sierra Leone and Accra, Ghana, alongside MetaFridge power data from vaccine storage refrigerators developed by Global Health Labs. These comprehensive datasets inform critical policy discussions on energy access, reliability, and infrastructure investments in developing countries, where accurate power quality data has traditionally been scarce.

GridWatch Datasets

High-resolution power quality and reliability measurements from nLine's GridWatch sensor networks deployed across Sierra Leone and Accra, Ghana. These datasets provide unprecedented insights into urban grid performance and healthcare facility electrification in Sub-Saharan Africa.

The GridWatch datasets include voltage and frequency measurements, outage duration tracking, and power quality metrics collected at 2-minute intervals over multiple years, offering researchers and policymakers detailed insights into power system performance in developing contexts.

MetaFridge Datasets

AC power data from Aucma CFD-50 vaccine storage refrigerators developed by New Horizons, a division of Global Health Labs. 270 of these devices were installed in low-resource hospitals in Kenya. These datasets span from 2017 Q2 through 2025 Q2 and provide comprehensive power conditioning analysis for improving equipment standards and reducing damage from AC power problems.

The Kenya MetaFridge dataset focuses on AC power measurements from vaccine storage devices, enabling researchers to extend the New Horizon's work on power conditioning equipment standards. This data supports analysis of refrigerator performance and power system reliability in healthcare settings. The data is available for download in CSV format.

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