The power budget is an analysis of how much power a data collection site requires. The analysis is required to determine how long a data recorder or a remote telemetry unit (RTU) will operate from a battery of a given capacity (amp-hours) without recharging and what size solar panel (or charging source) should be used to sustain the battery.
A power budget is determined by calculating how much time a data recorder or RTU spends in each of its operating modes and then summing the power used in each mode.
You can see an example of a power budget calculation here.
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