GridWatch
Transformer monitoring, prepared for the Energy Commission by POA NexGen
Simulated data Updated every 2s
00:00:00
GridWatch, national overview

Regional fleet health

Fleet by operator

Highest loaded units

watchlist
GridWatch, pilot district

Pilot district

Healthy Warning Critical Substation

Transformer detail

select a node
Select a transformer on the map to view its live telemetry.
GridWatch, diagnostics and asset life

Dissolved gas and insulation life

Oil-monitored assets only: transmission, bulk supply and units of 630 kVA and above. Hot-spot temperature and ageing acceleration follow IEC 60076-7; insulation ages at a reference 110 °C and the rate roughly doubles for every 6 K above it.
GridWatch, field inspection record

Log an inspection

select an asset

Inspection history

GridWatch, field engineer application

What the field engineer carries

Android first, works offline
These screens are driven by the same alerts as the console. Inject a fault from the panel on the pilot map and watch it arrive here.
GridWatch--:--
Dispatch
1 · Dispatch
Jobs in this engineer's district, most severe first.
GridWatchSyncing
Job detail
2 · Job detail
The fault named, and the equipment to bring before leaving the depot.
GridWatchStep 3 of 3
Install a unit
DTU-4G-99210-GHBarcode captured
Bound to—
Private APN attachPASS
TLS 1.3 handshakePASS
Telemetry endpointPASS
Certificate identityPASS
3 · Provisioning
Bind the unit to the asset and prove it reaches the platform.
GridWatchRequired
Calibrate
Clamp the reference meter on each phase and enter its reading.
UnitRefFactor
4 · Calibration
The step that makes every threshold in this platform defensible. Change a reference value.
GridWatch, dispatch desk

Work queue

Assign a job, then advance it as the crew reports in. Closure is verified against live telemetry: if the fault signature is still present when an engineer marks it resolved, the platform refuses the closure and returns the job to the queue.

Crew

on shift

Closure audit

last 10
GridWatch, alert log

Alert log

0 active

What the field engineer receives

00:00Ghana
GridWatch alerts
In a live deployment the same alert reaches the district engineer by SMS and email within seconds of the threshold being crossed. Today the engineer usually learns of a fault when a customer telephones.
GridWatch, reliability indices
Why this page exists. The Commission sets standards of performance for the distribution utilities under Act 541. SAIDI and SAIFI are the measures those standards are normally written in. This page derives them from the same monitored data as everything else, so a standard can be checked against what the equipment reported rather than against what was submitted. Figures below are simulated over an illustrative twelve month period, and the target line is a placeholder for a figure the Commission would set.

SAIDI by region

minutes per customer per year

By operator

Definitions

SAIFI is the average number of sustained interruptions a customer experiences in the period. SAIDI is the average total number of minutes a customer is without supply. CAIDI is SAIDI divided by SAIFI, so it reads as the average length of an interruption once one has happened.
GridWatch, regulator report

Regulator reports

GridWatch, indicative value case

Assumptions

edit any figure

Indicative annual position

These are assumptions, not a quotation. Every figure on the left is a placeholder for discussion and can be changed in front of you. A firm price depends on the number of units, the sites and the connectivity at each one, and follows the scoping session. The purpose of this page is to show the shape of the arithmetic, not to state what the programme costs.

How the benefit is counted

GridWatch, programme roadmap
PHASE 0

Scoping

Joint requirements definition with the Commission and the distribution utility. Pilot district, transformer list, success metrics and data governance agreed.

Proposed now
PHASE 1

District pilot

Twenty to fifty transformers instrumented in one district, with live load, temperature, voltage and oil level telemetry and automatic overload and overheating alerts. Everything shown in this console.

Proposed now
PHASE 2

Regional expansion

District by district rollout on the proven model, each tranche justified by the measured results of the last.

On proven results
PHASE 3

National platform

National coverage operated as a managed service, with laboratory oil results, thermal ageing models and predictive maintenance planning added on top.

Vision
A note on scope, stated plainly. This console demonstrates the Phase 1 pilot capability: live electrical and thermal telemetry with automatic early warning. Advanced diagnostics such as dissolved gas analysis appear on the roadmap as Phase 3, because DGA requires physical oil sampling and laboratory analysis and is integrated as periodic laboratory data rather than live sensor telemetry. This system is a monitoring and early warning layer that shortens human response time. It complements, and never replaces, the protective relays that isolate faults automatically.
Inject a fault — pick a transformer first
Selected: none
Select a transformer on the pilot map, trigger the overload, let the alert fire, then recover it. Shortcuts work with this panel closed. P toggles this panel, 1 to 9 switch tabs, T switches theme, Esc closes menus.