What is a capture price?

The average price a generator's output earns: each hour's price weighted by what the plant produces in that hour. Solar produces most when midday prices are low, so its capture price usually sits below the around-the-clock average.

Where does the output shape come from?

A typical shape for the region by month and hour, from public government generation data by fuel. To value a specific project with its own profile, use PPA valuation.

How are the coming months priced?

EOX's on- and off-peak marks for each month, spread over the hours from the hub's own recent day-ahead prices, with each block averaging back to its mark.

Which hubs are covered?

Hubs and zones in your subscription whose day-ahead history EOX loads.

Tools › Capture prices

Solar and wind capture prices

See what a typical solar or wind plant's output has earned at a power hub, month by month, against the hub's around-the-clock average, and what EOX forward curves imply for the months ahead.

What goes in, what comes out

Your choices

The market and hub, as named in your power curves
Solar or wind
How many past months to measure, up to five years
How far ahead to price on the forward curve, up to 20 years

The results

Each month's capture price, the hub's around-the-clock average, the capture ratio and the discount in $/MWh
The share of output that landed in negative-price hours
Yearly totals, and the last 12 months against the 12 before
The same measures for each coming month, on EOX's on- and off-peak marks shaped hour by hour, out to 20 years with EOX's long-dated curves, and by year: a long-dated capture curve for the hub
On the power map, every hub coloured by its solar or wind capture ratio for the next 12 months

Capture is each hour's day-ahead price weighted by a typical output shape for the region, built from public government generation data. It describes the region's typical plant, not a specific project or the weather of any one month.

Example

Solar capture, last 12 months31.85$/MWh; 82% of the hub's 38.80

The 12 months before34.20$/MWh; 88% of the hub's 38.90

Next 12 months36.40$/MWh on the forward curve; 85% of the hub

Values are illustrative.

Use it from

Python

from eoxlive import EOX
eox = EOX("YOUR_KEY")
cap = eox.capture("ISO1", "HUB1", tech="solar", history_months=24, months_ahead=24)
cap["past"]       # month by month: hub average, capture, ratio, discount, output at negative prices
cap["ahead"]      # the coming months on the forward curve
eox.capture("ISO1", "HUB1", tech="wind", months_ahead=240)["ahead_by_year"]   # the long-dated capture curve

REST

curl -H "X-API-Key: YOUR_KEY" \
  "https://api.eoxlive.com/v1/analytics/capture?iso=ISO1&market=HUB1&tech=wind"

Or in the browser, on the Market analysis page under Valuation, signed in with your EOX account.

Questions

What is a capture price?: The average price a generator's output earns: each hour's price weighted by what the plant produces in that hour. Solar produces most when midday prices are low, so its capture price usually sits below the around-the-clock average.
Where does the output shape come from?: A typical shape for the region by month and hour, from public government generation data by fuel. To value a specific project with its own profile, use PPA valuation.
How are the coming months priced?: EOX's on- and off-peak marks for each month, spread over the hours from the hub's own recent day-ahead prices, with each block averaging back to its mark.
Which hubs are covered?: Hubs and zones in your subscription whose day-ahead history EOX loads.

Included with your subscription. The tools use the curves, vols and correlations your subscription already covers, under the same entitlements, and are never charged for separately. Results are for information only; values shown on this page are illustrative.

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