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Software watches IBEX, so you don’t have to.

TokPirate is software that curtails and restarts solar plants automatically when the power price drops below the minimum you set. No hardware – it works through your inverter’s cloud.

Negative prices are no longer the exception.

When the sun shines across Europe, the market has more power than it needs and the IBEX price falls to zero and below. Every megawatt-hour you produce then costs money: the negative price itself, plus balancing, grid access and your trader’s fee.

In 2023 Bulgaria had 11 hours of negative prices; in 2025 it had 170. And since 1 October 2025 the IBEX price changes every 15 minutes – 96 prices a day.

Owners and asset managers shouldn’t have to watch the exchange all day to decide when to curtail. That’s why we built TokPirate: you set the rules once, and the software applies them every day.

Hours with negative prices in Bulgaria
  • 2023 11 hours
  • 2024 55 hours
  • 2025 170 hours

Counted in hours, not 15-minute intervals.

Source: Capalo AI analysis of ENTSO-E data

96 prices a day

15-minute intervals on the IBEX day-ahead market since 1 October 2025.

Source: IBEX

What we do differently

  • Public, lower prices

    Prices are on the website – from €15 per month, in euro, excl. VAT. No sales call needed for up to 100 inverters.

  • From 1 to 100+ inverters

    One plant or a whole portfolio in a single account, with a separate threshold for each plant. You pay by number of inverters.

  • A modern interface

    Fast, clear and easy to use on a phone. Profit after fees, inverter status and the schedule on one screen.

  • Support from real people

    We answer in English and Bulgarian, by phone and e-mail.

    [Support hours]

How we work

  1. 01

    You set the rules

    You set the minimum price for each plant – or for each inverter. The system applies it and alerts you in real time.

  2. 02

    Only the manufacturer’s standard functions

    We work through the official inverter cloud and use its standard power limitation. No extra hardware, no changes to your installation.

  3. 03

    Your trader knows in advance

    Curtailments go into the schedule your trader receives the day before. No surprises for the balancing group.

  4. 04

    Transparent numbers

    Our prices are public. In the app you see profit after all fees, not just the exchange price. When we quote market data, we cite the source.

  5. 05

    A person answers

    When you write or call, a person answers – not a bot.

Company details

Legal name
[Фирмено наименование]
Company ID (ЕИК)
[ЕИК]
Registered address
[Registered address]
E-mail
[имейл]
Phone
[телефон]
Support hours
[Support hours]

Stop paying to produce.

Connect your first plant in a few minutes. 14 days free, no card required.