BEMServer vs Johnson Controls OpenBlue Net Zero

BEMServer is an open-source platform for deploying a modular building energy management system. It gathers information from building management systems and sensors alongside weather, occupant feedback, building descriptions, and contextual data. The platform connects building hardware with data-oriented services, storing building models, time series, and events for access through documented REST APIs. Its data model follows IFC and Haystack standards. Processing modules interpret collected information to identify issues or inefficient operation and support recommendations and decisions. Listed modules cover fault detection and diagnosis, renewable energy simulation, energy management, load forecasting, indoor environmental quality, and visualization. The software is licensed under AGPL-3.0, and sellers using a modified version must publish their modifications under that license. There is no software license fee, although installation, configuration, maintenance, and selected modules may be paid services. The maker recommends help from someone with Python and Docker knowledge and says installation was tested on Debian 9. BEMServer currently supports building monitoring; other uses require extending its functionality.

Johnson Controls OpenBlue Net Zero is a web-based platform for facility managers tracking energy, emissions and utility spending across building portfolios. It automatically gathers energy information from utilities, meters and building systems, then presents performance through a unified dashboard and real-time meter views. Teams can benchmark emissions between sites, forecast energy use and examine relationships among consumption, occupancy, schedules and external conditions to identify reduction opportunities. Reporting includes standard and configurable reports, a dashboard builder, scheduled email reports, portfolio KPIs and benchmarking. The platform manages scope 1 and scope 2 emissions and assists reporting for certification and compliance frameworks. Integrations cover access control, building automation controllers, meters, occupancy, utility power status, weather data and work orders. Utility data import, carbon tracking and API access are available. Pricing is on request, and Johnson Controls directs prospects to request a demo.