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Forecasts & the archive

Browse the public forecast archive, inspect operator-native horizons and sources, read net load, and compare the vintage available then with what happened later.

Status
Live
Access
Public archive · 2 detail samples · Free account after
Reading time
14 minutes
Reviewed
Sep 1, 2026
Maintained by
Grid intelligence

The forecast archive brings load, net load, price, wind, solar, outage, and temperature outlooks into one public directory across the organized markets and the Lower 48. The archive stays open; an anonymous browser can sample 2 unique asset or forecast detail pages before creating a free account. A shared page structure makes the products navigable, while issuer, issue cadence, valid horizon, market timezone, units, source, and coverage remain operator-specific.

Historical evaluation preserves the vintage that actually existed at the chosen issue time. Observations, day-ahead market values, operator forecasts, derived net load, and Metiscast model series remain visibly distinct, so later information does not improve an earlier forecast after the fact.

On this page · 5 sections
  1. Browse the forecast archive
  2. Read national load and net load
  3. Read forecast charts
  4. Compare a historical forecast
  5. Metiscast model series

Browse the forecast archive

Start with the decision—load, prices, renewables, outages, temperature, or net load—then choose the market and exact published product.

The Ask the Grid forecast archive in card view showing 41 forecasts with kind filters, sparklines, peaks, and changes across each visible window.
The archive uses one filterable index for public forecast families while each page retains its own source contract.

Filter by forecast family

Use table or card view to narrow the archive to load, price, wind, solar, net load, outage, or temperature products. Each row summarizes the visible window from the same points shown in its sparkline; open the page before using the peak or change in a decision.

  1. 1Open Forecasts from the main navigation.
  2. 2Choose a forecast family, market, or search term.
  3. 3Open the exact product to confirm issuer, issue time, horizon, timezone, and source.

Use a permanent market archive

A market's Forecasts tab opens the complete forecast set for that operator rather than choosing one product to represent it. Bookmark that route when the recurring job begins with one market and several forecast families.

Read national load and net load

The US grid load forecast page showing Lower-48 demand, a day-ahead outlook, and regional grid demand in one source-labeled national view.
The national page assembles Lower-48 demand and regional reporting without presenting it as one operator's forecast.

Treat the national view as an assembly

US grid load combines EIA's Lower-48 hourly demand with the day-ahead forecasts reported by regional authorities and a thirteen-region breakdown. It is a national view of several reporting systems, not a forecast issued by one ISO or balancing authority.

Check every net-load input

Net load subtracts the published wind and solar forecasts from published demand. The page plots demand, wind, solar, and the derived result together so the calculation can be checked and the market's real component horizons remain visible.

Net load is a calculated forecast series; it is not the operator's label unless the source itself publishes that product.

Read forecast charts

The ERCOT Radar price desk with system lambda, storage dispatch, and a real-time versus forecast price chart.
Observed prices and forecast series remain visually distinct on the same time axis.

Observed, day-ahead, and model series

Forecast-capable charts keep realized values beside the available forward-looking sources. The legend names each series, and the line treatment separates observed data from forecasts.

Know where the future begins

A visible time split marks the boundary between realized history and the forward horizon. The current-time marker stays pinned to the realized series instead of appearing twice.

Inspect and zoom

Hover for the timestamp and value, use the legend to show or hide a source, and drag horizontally across a chart to zoom into a smaller interval.

Compare a historical forecast

See what the model knew then

When a forecast model is available to your account, move the map timeline into the past to load the forecast vintage available at that moment. Ask the Grid keeps that original run intact and places the prices that later settled beside it.

  1. 1Open an ERCOT price node or a forecast-capable Radar chart.
  2. 2Move the timeline back to the forecast issue time you want to review.
  3. 3Compare the historical forecast with the realized prices that followed.
  4. 4Reset to live to return to the current forecast run.

The historical view does not blend later information into the original forecast.

Open model details

Use the model details control to review the source, issue time, horizon, refresh schedule, uncertainty, inputs, and methodology available for that forecast.

Metiscast model series

The signed-in Experiments settings showing the Metiscast forecasts preview control switched off.
Eligible users control the Metiscast preview under Settings → Experiments.

Turn Metiscast forecasts on or off

Any signed-in account can control the Metiscast overlay from Settings → Experiments — the choice follows your account across devices. Turning it off removes the model forecast series while keeping observed and market data available.

  1. 1Open Account → Settings.
  2. 2Choose Experiments.
  3. 3Switch Metiscast forecasts on or off.

Keep model and market series distinct

Turning the experiment on adds supported Metiscast series without replacing operator forecasts, day-ahead market values, or observed outcomes. Use the model details control for issue time, horizon, uncertainty, inputs, and methodology before comparing it with another source.

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