Terms of service

1. Who we are

The service is provided by Tomáš Knespl, trading as progrunners, Pardubice, Czech Republic, company ID (IČO) 14398150 (“we”). Contact: info@progrunners.com. Details: Imprint.

2. The service

• Forecasts of day-ahead electricity prices for European bidding zones, published every morning before the 12:00 CET auction, in 15-minute steps with a 10–90 % range, on this website, by API, CSV and JSON.
• Personal: one zone, the full tomorrow, for natural persons and personal, household use only (for example a home battery, an electric car or a heat pump), on this website and by API (an API key for Home Assistant and similar home automation); no CSV or other data export. Any commercial use – trading for a company, running a commercial battery or other asset, automated commercial processing, or services or data for clients – needs the Commercial, Battery, Professional or Enterprise plan. Commercial: one zone for use inside your company, with API and CSV. Professional: all zones we forecast, with API and CSV. Enterprise: by individual offer. Battery: one zone plus a daily charge and discharge plan for the battery you register, sent by e-mail, and the next-day result at the actual prices.
• You may not resell, publish or pass our forecasts to third parties in bulk or as a data service without a separate written licence.
• A forecast is an estimate. Prices can differ from it, sometimes a lot. Figures marked “simulated” are backtests, not results we promise. Nothing here is investment, trading or legal advice. You decide how you run your battery, car or business.

3. Subscription and payment

• You subscribe monthly or yearly and pay in advance through Stripe. The subscription renews automatically for the same period until you cancel it.
• Prices are in EUR excluding VAT. VAT is calculated at checkout according to your country and status.
• Battery is priced by the size band of the rated power of your battery, or the total rated power of the batteries in your licensed portfolio (up to 2, 10, 30 or 80 MW; above 80 MW by individual offer). The licence covers the specific battery or portfolio you register with us: site, country, rated power, capacity and its registry ID where one exists (for example the Marktstammdatenregister number in Germany). Up to 10 MW you buy online, enter the power and capacity at checkout and send us the site and registry ID after purchase; above 10 MW we verify the battery before activation and sign an individual contract. You must tell us when the power of a licensed battery or portfolio increases. A battery or portfolio above its band must move to the matching band; we may ask for proof of the rated power.
• If we have reasonable grounds to suspect a breach of the licence (for example commercial use of Personal, or a battery above its band), we may ask you to explain and may suspend access until it is resolved.
• We can change prices for future periods with at least 30 days’ notice by e-mail; you can cancel before the change applies.

4. Cancellation

• You can cancel at any time. The plan stays active until the end of the period you already paid for; we do not refund unused parts of a period.
• To cancel, use “Manage billing” in your account once it is available, or write to info@progrunners.com.

5. No right of withdrawal

The forecast is digital content delivered right after payment. When you subscribe, you ask us to start immediately and you confirm that you thereby lose the right to withdraw within 14 days (for consumers in the Czech Republic § 1837 (l) of the Civil Code, in the EU Article 16 (m) of Directive 2011/83/EU). We confirm this in the e-mail we send after payment. You can still cancel at any time for the end of the paid period.

6. API keys and fair use

• Keep your API key secret; you are responsible for its use. You can create a new key in your account at any time.
• A plan is for your own organisation or household. Reselling or republishing the forecast needs a separate agreement — see the Partner plan.
• Up to 20,000 API requests per key per day.

7. Availability and liability

• We run the forecast every day and aim to publish it before the auction, but we do not guarantee uninterrupted availability.
• Our total liability is limited to the amount you paid us in the 12 months before the claim. This does not limit liability for intent or gross negligence, or rights that consumer law does not allow us to limit.

8. Personal data

See the privacy policy.

9. Law and disputes

Czech law applies. If you are a consumer, you keep the mandatory protection of the law of your country. Consumers can turn to the Czech Trade Inspection Authority (coi.cz) for out-of-court dispute resolution. We tell you about changes to these terms by e-mail at least 30 days in advance.