TRMNL

Texas Power Grid

Charts related to the ERCOT grid

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This plugin displays charts and metrics for the ERCOT interconnection, the power grid serving most of Texas. Use the Display option to choose from the following views: • Wind and Solar: Actual wind and solar generation for today, plus forecasts through the end of tomorrow. Series can be stacked or overlaid. • System-Wide Prices: Individual plots of hub and load zone prices, comparing today's real-time price with the day-ahead price. An all-prices view summarizes every hub and load zone in a single display. • Energy Storage: Fleet-wide behavior of Energy Storage Resources (ESRs). Optional toggles add a "net energy" line showing cumulative ESR energy as a proxy for state of charge, and a box plot overlay comparing current behavior to the previous 30 days. • Ancillary Services: Regulation services over the past two hours.

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About This Plugin

The "Texas Power Grid" plugin shows a collection of ERCOT information including wind and solar generation, system-wide prices, energy storage resource output, and ancillary services. The display shown on the TRMNL device and be chosen via the dropdown below. This plugin is not affiliated with ERCOT Inc. and uses publicly available data.

Available settings

Display

Which display to show.

Wind and Solar System Wide Prices Energy Storage Ancillary Services

Wind and Solar: Show data as stacked area chart

If enabled, the wind and solar data will be stacked.

System Wide Prices: Oops all prices

Hides the chart and shows cards for all real-time prices

System Wide Prices: Choose settlement point to display on chart

Hub Bus Average Houston Hub Hub Average North Hub Panhandle Hub South Hub West Hub + 8 more

Energy Storage: Show Net Energy

If enabled, the net energy the fleet has taken in since the start of the day (a stand-in for its state of charge) is shown as a card and a chart. Disable to show only the power series.

Energy Storage: Show Hourly Range

If enabled, the charts show the last 24 hours, and the power chart is overlaid with the fleet's net output over the past 30 days for each hour of the day -- a box plot of that hour's readings, its box spanning the lower to upper quartile with a bar at the median and its whiskers reaching the lowest and highest.