Daily guide · LV · 2026-09-07
What solar actually earned per MWh in Latvia this week
All numbers computed from the week's published auction results at publication and frozen — this article is an honest snapshot, not a page that rewrites itself. Reproduce via the API.
Latvian solar captured an average of 54,98 EUR/MWh this week, against an average baseload of 74,89 EUR/MWh. That puts the capture rate at 0,69, meaning solar earned roughly two-thirds of the round-the-clock price. The spread between the two figures is the story: even in a market where solar output stays modest, midday generation is pulling prices down when it matters most for capture.
The week split cleanly into two halves. Through 4 September, capture held between 67,62 and 79,61 EUR/MWh, and 4 September stood out with a rate of 0,97 as baseload fell to 78,52 EUR/MWh and peak solar dropped to 0,3 GW. The last two days told the opposite tale: capture collapsed to 9,39 EUR/MWh on 5 September at a 0,47 rate, then 28,24 EUR/MWh at 0,44 on 6 September, even as peak solar sat at 0,4 and 0,5 GW.
The takeaway: capture rate tracked scarcity, not sunshine. The strongest rate came on the lowest-output day. For anyone modelling Latvian solar revenue, weight the price environment over installed peak.
Solar has a pricing problem it created itself: every panel in LV produces at the same hours, so the more the fleet generates, the lower the price each MWh fetches. The number that captures this is the capture price — the generation-weighted price solar actually earned — and the capture rate, that price as a share of the plain average. Brochures quote the average; revenue arrives at the capture price. This week, measured on real generation and auction data:
54.98
€/MWh solar capture price this week (generation-weighted)
74.89
€/MWh baseload average — the number the brochure quotes
69%
capture rate — what solar keeps of the average price
Day by day
| Day | Capture €/MWh | Baseload €/MWh | Capture rate | Peak solar |
|---|---|---|---|---|
| 2026-08-31 | 79.61 | 103.42 | 77% | 0.9 GW |
| 2026-09-02 | 67.62 | 90.69 | 75% | 0.7 GW |
| 2026-09-03 | 69.03 | 92.31 | 75% | 0.8 GW |
| 2026-09-04 | 76 | 78.52 | 97% | 0.3 GW |
| 2026-09-05 | 9.39 | 20.01 | 47% | 0.4 GW |
| 2026-09-06 | 28.24 | 64.37 | 44% | 0.5 GW |
Capture = Σ(hourly price × solar MW) / Σ(solar MW), from realized generation (ENTSO-E A75) and published auction results. Sunny days push the rate DOWN — that's the cannibalization.
Why this number runs businesses
If you're valuing a PPA, sizing a solar+storage project, or hedging merchant exposure, the capture
rate — not the average price — is your revenue line. One week is weather noise; the trend is the
signal: GET /v1/capture/LV?technology=solar&months=24
returns two years of monthly capture prices and rates, and
POST /v1/ppa/value backcasts a pay-as-produced PPA at your strike.
Both are on the Scale tier (Pro gets a teaser);
battery owners can flip the same effect into revenue — see the
battery arbitrage guide for what the storage side earned this week.
Method & citation. Prices are hourly means of published day-ahead auction results (native 15-minute periods averaged; ENTSO-E/SMARD, attributed). Wholesale-price component only — grid fees and taxes come on top and vary by supplier. Cite as "Voltcast Research, voltcast.com/guides/solar-capture-lv-2026-09-07".
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