Peak hours (PSE grid data)
PSE (Poland’s transmission system operator) publishes a daily demand forecast with four levels — from an invitation to use more energy to a request to cut back. I pull that data straight from the official free PSE API and show it clearly for today and tomorrow.
Fetching today’s schedule from the PSE API…
Time windows for this day
Hour by hour
Could not fetch data from the PSE API — the server may be briefly unavailable. Check the current schedule directly on the PSE reports page.
Windows run from the start of the first hour to the end of the last one, so “09:00–17:00” means eight full hours — in the PSE report those are the tiles from 09:00 to 16:00, so you can still start an appliance at 16:30. PSE publishes the next day’s forecast in the afternoon and then updates it; I always show the newest version. To check whether anything changed, press “Refresh”. This is a forecast, not a guarantee: real load can differ. The “reduction required” level is announced rarely, when supply security is genuinely at risk. All hours are Polish local time.
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