A technology Mode is an operational "regime" of a technology, corresponding to a specific set of inputs and outputs, and corresponding efficiencies.
For instance an air-source heat pump may have a winter mode and a summer mode, with different COPs or a reversible heat pump might have a cooling mode and a heating mode:
The technology modes is designed and operates with the following rules:
The summed output per hour of all Technology Modes cannot be higher than the chosen Capacity by the optimizer.
Different modes can operate at the same time (hour). The only way to avoid this is to define different Seasonal Operation (or to use monthly Time Varying Efficiency).
Maximum Capacity is according to the first mode (same max capacity is applied to all modes)
Max/Min Annual Output is applied to the first output EC of the first mode - and not the total output as sum of the modes.
Variable O&M cost of the technology is based on the sum of all outputs for all modes.