Meters and collect
Power and energy systems do not start with an energy wall. Every number on that wall comes from a collect point: meters, tie points, inverters, environment. Which points must be collected, how often, how gaps are backfilled, how thresholds alarm—if those three are unset, later reports only paint noise more prettily. We start on site with a point list: communications, multiplier, time sync, whether history can be recalled. Station vs office isolation, protocol conversion, and bad clocks are real project work in the design, not an assumption that a curve appears once plugged in.
Alarm grades
Alarms must grade or the shift turns all push off. Limit, comms loss, power factor, harmonics—which dispatch now, which enter a daily—sit with the roster. Energy used for settlement has a read time, freeze value, and a human check, separate from monitoring-minute data, so finance and operations do not each own a number both called “energy.”
Completeness as an SLA
Energy projects often write device online rate and data completeness into acceptance. Holes, spikes, and clock drift must be found and traced to a meter. Completeness and recall success are a daily board, not a one-day brush for acceptance. Distributed PV, storage, and demand control, if in scope, split control and monitor rights—a mis-control costs more than a missing picture.
Demand and TOU
Demand, power factor, and time-of-use decide the utility bill and are not the same definition as a monitoring instantaneous. Virtual power plant or demand control, if in scope, must split command and monitor rights. Meter swaps and multiplier changes have an effective time so history energy interprets at the then multiplier, or reconciling reopens old books. PV reverse flow and storage charge/discharge, if connected, need their own settlement points.
By station or feeder
Go-live is by station or feeder: keep critical settlement points collectable and trusted, then expand monitors. Connecting existing SCADA or billing uses the point list and energy definition as source of truth. Training is shift and metering. A power system that works has answered alarms, matched energy, and explainable completeness; the wall is a display of those three, not the project goal.