An apparatus to dynamically assess energy usage of a facility, the apparatus comprising:
- an energy management system including at least one computer processor, the energy management system configured to obtain a minimum energy consumption of the facility that includes installed building systems, subsystems, and components, wherein obtaining the minimum energy consumption comprises:
- obtaining, with the at least one computer processor, a theoretical minimum energy consumption of the facility based at least in part on theoretical efficiency limits of the installed building systems, subsystems, and components;
- obtaining, with the at least one computer processor, an achievable energy consumption of the facility based at least in part on specifications associated with high energy-efficiency equivalents of the installed building systems, subsystems, and components;
- and
- obtaining with the at least one computer processor, a designed minimum energy consumption of the facility based at least in part on specifications associated with the installed building systems, subsystems, and components;
- a plurality of measurement devices configured to measure, at least once a minute, an actual energy consumption of the installed building systems, subsystems, and components;
- the energy management system including a first analog input/output module and a second analog input/output module, the enemy management system further configured to receive the measurements of the actual energy consumption of the installed building systems, subsystems and components, wherein receiving the measurement of the actual energy consumption comprises:
- receiving, with the first analog input/output module, first energy data associated with a first electrical circuit of the installed building systems, subsystems and components, the first energy data having a first protocol;
- receiving, with the second analog input/output module, second energy data associated with a second electrical circuit of the installed building systems, subsystems and components, the second energy data having a second protocol different from the first protocol;
- sampling, at least once a minute, the first and second energy data to provide first and second digital energy data;
- and
- transmitting at least one of the first and second digital energy data over a network having a third protocol;
- and
- the energy management system further configured to compare, with the at least one computer processor, the minimum energy consumption to the measurement of the actual energy consumption to calculate an energy performance assessment that is based on theoretical, achievable, and designed energy efficiencies of the facility, wherein comparing the minimum energy consumption to the measurement of the actual energy consumption comprises:
- comparing, at least once a minute, the theoretical minimum energy consumption of the facility to the measurement of the actual energy consumption to determine the theoretical energy efficiency;
- comparing, at least once a minute, the achievable minimum energy consumption of the facility to the measurement of the actual energy consumption to determine the achievable energy efficiency;
- and
- comparing, at least once a minute, the designed minimum energy consumption of the facility to the measurement of the actual energy consumption to determine the designed energy efficiency.