Pstryk
A Polish energy startup (since October 2024) selling electricity on hourly dynamic prices from the TGE wholesale market (RDN), with a zero handling fee, a margin of 0.08 PLN net/kWh and its own WiFi meter inside the fuse box. Key safety mechanism: the Pstryk price cap — the weighted monthly average will not exceed 0.61 PLN/kWh gross (until 31.12.2026, with planned extensions). Endorsed by Michał Szafrański (ambassador, code NINJA50 = 50 PLN discount).
🚀 Main thesis
Pstryk is not “cheaper electricity” — it’s electricity you can steer.
The cap protects against price spikes, dynamic prices unlock savings potential, the app provides full transparency (kWh cost broken down into: market + margin + distribution + excise + VAT), and notifications about tomorrow’s prices let you plan consumption.
🧩 Billing model
- Hourly price from TGE/RDN + 0.08 PLN net/kWh margin.
- 0 PLN handling fee (vs 12-31 PLN/month at E.ON and other commercial offers).
- Tomorrow’s prices known today after 12:00 + a push notification at 19:00 with recommendations.
- Pstryk price cap calculated monthly (not hourly): if the weighted monthly average > 0.61 PLN/kWh gross → discount down to 0.61. If lower → you pay less. You can’t lose.
☘️ Who it makes sense for
YES:
- EV owners with a home charger — potential ~1800 PLN/year when charging in the golden window 10-15 instead of in the evening.
- Heat pump owners — ~970 PLN/year with scheduled operation.
- Energy storage / PV with storage — a natural match for dynamic prices.
- E.ON customers (most Warsaw residents) — the handling-fee saving alone is 180-300 PLN/year, the meter pays for itself in 8-12 months.
- Retirees / remote workers — consumption profile naturally lands in the midday “golden window” 10-15.
- People who like to understand their bills — no other vendor in Poland gives this level of detail.
NO:
- Passive customer on the regulated URE tariff (PGE/Tauron/Enea) — 9-33 PLN/year of savings, meter pays back in 3-4 years.
- No WiFi / no smartphone — the service won’t work.
- No interest in optimization — the cap protects you, but you lose the entire upside of the product.
📒 Back-test numbers for 2025 (8760 hours)
Reference: a typical URE-tariff vendor at 0.615 PLN/kWh.
Passive user (no optimization)
| Profile | Consumption | Yearly average | Saving |
|---|---|---|---|
| Standard apartment dweller | 2400 kWh | 0.6100 PLN | 12 PLN/year |
| Couple working 8-17 | 1800 kWh | 0.6100 PLN | 9 PLN/year |
| Retiree at home | 2200 kWh | 0.5837 PLN | 69 PLN/year |
| Family with kids | 3500 kWh | 0.6100 PLN | 22 PLN/year |
| Remote worker | 3000 kWh | ~0.599 PLN | 33 PLN/year |
Active (shifts ~20% from 17-21 to 10-15)
- Standard: 60 PLN/year
- Couple at work: 51 PLN/year
- Retiree: 117 PLN/year
- Family with kids: 120 PLN/year (6× more than passive)
- Remote worker: 127 PLN/year
Full balance including handling fee (year 2 and onward)
| Current vendor | Active standard | Active family |
|---|---|---|
| URE tariff (0 PLN/month) | ~60 PLN/year | ~120 PLN/year |
| E.ON (~15 PLN/month) | ~240 PLN/year | ~300 PLN/year |
| Commercial bundled (~25 PLN/month) | ~360 PLN/year | ~420 PLN/year |
🗒️ The golden price window
- Cheapest 10:00-15:00: 2025 average = 0.45 PLN/kWh (28% below benchmark). 67% of hours in this window are cheaper than URE.
- Most expensive 17:00-21:00: average 0.88 PLN/kWh (43% above benchmark). Only 9% of hours here beat URE.
- Daily spread in 2025: 0.74 PLN/kWh on average, max >2 PLN/kWh.
- Sunday = king of cheap days (16 gr cheaper than Tuesday).
- Negative prices: 95 hours in 2025, record -0.52 PLN/kWh (Easter Sunday April 13, 12:00). 72% on weekends/holidays. 33% landed in April.
🔌 What can be shifted
- Washing machine 2×/week into the golden window: ~68 PLN/year
- Dishwasher 6×/week: ~162 PLN/year
- EV charging 2×/week, 40 kWh each: ~1800 PLN/year
- Heat pump over the heating season: ~970 PLN/year
What’s NOT worth touching: fridge/freezer (24/7), LED lighting (pennies), router, AC (already runs in the golden window anyway).
💰 Getting in
- 299 PLN gross activation fee (meter + installation by a Pstryk electrician — Warsaw, Kraków, Wrocław, Łódź, Poznań, Tricity, Szczecin, Bydgoszcz, Katowice, Częstochowa, Toruń, Grudziądz, Lublin, Rybnik, Racibórz, Wodzisław Śl.).
- Code NINJA50 = -50 PLN on the first invoice → effectively 249 PLN.
- The meter remains Pstryk’s property, returned when the contract ends.
- Indefinite-term contract, monthly notice, zero contractual penalties, 14-day right of withdrawal.
- Pstryk Connect (optional): 30 PLN/month (3 months free) — automation for EV chargers, energy storage, and in the future heat pumps.
Meter ROI (249 PLN, Standard Active profile)
- URE tariff: ~3.5 years
- E.ON: ~1 year
- Commercial bundled: ~8 months
⚠️ Requirements
- Stable home WiFi.
- Space in the fuse box for one extra “breaker”.
- Smartphone (iOS/Android) — the app is the heart of the product.
- PPE number from your invoice when signing up.
Pstryk handles the termination with your current vendor (via power of attorney). Switching time: 6-8 weeks.
🔧 Installation pitfalls (cautionary notes from the article)
- Unpack the meter in your presence — the meter + clamps are factory-calibrated together. Mixing sets = wrong readings.
- Phase order on 3-phase systems — compare instantaneous per-phase load in the app with the main meter.
- Pair the app while the electrician is there — don’t let them leave before you’ve verified.
📱 App features
- Hourly prices for today + tomorrow (after 12:00).
- Push notification at 19:00 with recommendations.
- Live consumption refreshed every minute, per phase (3-phase).
- Hourly / daily / monthly history from day 1.
- Full breakdown: market price + Pstryk margin + distribution + excise + VAT.
- CO2 footprint.
- Invoices + payments (bank transfer / PayU).
- Open API — integration with smart home.
- Referral program.
⚠️ Caveats
- The cap does not cover distribution (no vendor can influence that).
- The cap requires a working meter (when WiFi is down → no protection).
- Pstryk is a startup from October 2024 — short history, exposure risk to a young company. Mitigated by the lack of long-term commitment.
- The cap is valid until 31.12.2026 — leadership signals an extension, but there’s no guarantee for 2027+.
🔗 Links
- Website: https://pstryk.pl/
- Hotline: +48 588 810 295
- Discount code: NINJA50 (-50 PLN)
- Source analysis by Michał Szafrański (May 2026): https://jakoszczedzacpieniadze.pl/pstryk-czyli-czy-warto-zmienic-sprzedawce-pradu
📖 Resources
- Original blog post with 8760-hour 2025 back-tests: see
_raw/processed/2026-05-10_Pstryk-czyli-kolejna-odslona-Pradu-dla-Finansowych-Ninja.md. - Predecessor campaign “Electricity for Financial Ninjas” with Lumi (2019-2024): 2417 customers, guaranteed rates 0.29 → 0.39 PLN/kWh.
Template: tool