Check your site
What happens
We confirm space, grid connection, and suitability.
Timeline
1-2 weeks
⚡ STATUS 2026: 0 PLN CAPEX Installations — limited funding pool. Apply now.
Turn Grid Connection Into Passive Income.
We install energy storage on your site, finance 100% of costs, and share the profits. You provide the space — we handle the rest.
0 PLN CAPEX
Profit Sharing
Full Outsource
CHECK AVAILABILITY →
Free verification in 2 minutes
How exactly does the energy storage make money?
We use your grid connection to work on two fronts simultaneously.
Behind-the-Meter
Savings for your business
The battery watches over your local expenses.- Peak Shaving: We cut power peaks so you don't pay penalties and high capacity fees.
- PV Optimization: We store free energy from your panels (if the market doesn't offer better returns at that moment).
- Backup (UPS): The storage protects your business from sudden voltage drops.
BENEFIT: Lower bills and energy independence.
Front-of-the-Meter
Earning on the energy market
This is where we generate capital to pay for your installation.- Grid Stabilization (FCR/aFRR): The TSO pays us for battery readiness to stabilize electricity. This is currently the most profitable service.
- Trading (Arbitrage): We buy electricity at night (when it's cheap) and sell to the grid at peak (when it's expensive).
- Capacity Market: We receive compensation for storage readiness to support the national system.
BENEFIT: 100% financing by Sun Valley Energy.
How it works:
To guarantee the 0 PLN CAPEX model, the system always prioritizes the highest-value use of the battery. When grid services generate significantly higher returns than local energy savings, the battery supports the grid. When market conditions allow, it focuses on reducing your energy costs behind the meter.
Your energy storage in 5 steps
From audit to first profit in 6-8 weeks.
Sign & reserve
What happens
You sign a hosting agreement. No capex. No ownership. No risk.
Timeline
1 week
Grid & permits
What happens
We handle grid approval, compliance, and aggregator setup.
Timeline
4-8 weeks
Install the battery
What happens
Battery is delivered, installed, and commissioned with minimal disruption.
Timeline
1-3 days on site
Earn automatically
What happens
Battery operates in the background. You receive your agreed benefit.
Timeline
Ongoing (monthly payouts)
Check your site
What happens
We confirm space, grid connection, and suitability.
Timeline
1-2 weeks
„The entire administrative and technical process is on our side."
Proven in Your Industry
See how companies like yours are already earning from energy storage
5,000 m² shopping center earns 45,000 PLN annually
Key benefit: Peak demand reduction during high traffic hours
Energy cost optimization during peak traffic hours and maximum utilization of grid connection capacity.
Production facility stabilizes energy costs 24/7
Key benefit: Predictable costs with continuous operation
Continuous production with predictable energy costs and reduction of peak power charges.
Class A office building achieves ESG goals and earns
Key benefit: Cost reduction + sustainability
Energy cost reduction and sustainability goals realization for modern office buildings.
Fitness chain earns 30,000 PLN/year per location
Key benefit: Morning and evening peak optimization
Maximum savings during peak load hours - morning and evening.
Ideal for industries:
Not sure if you qualify?
Check in calculatorBenefits
Why choose Battery as a Service
Zero CAPEX
0 PLN from your pocket. We install a system worth 400,000 - 1,600,000 PLN. You pay: nothing.
Additional Revenue
15,000 - 60,000 PLN annually flows to your account. Automatically. For 10 years.
Energy Cost Stability
Peak demand reduction and price arbitrage stabilize energy bills.
Full Service
24/7 monitoring, maintenance, insurance - all on our side. You just receive payments.
Tier 1, EU Certified
Highest quality equipment with European certificates and manufacturer warranty.
Safe LFP Technology
LiFePO₄ - the safest and most stable battery chemistry on the market.
Zero CAPEX
0 PLN from your pocket. We install a system worth 400,000 - 1,600,000 PLN. You pay: nothing.
Additional Revenue
15,000 - 60,000 PLN annually flows to your account. Automatically. For 10 years.
Energy Cost Stability
Peak demand reduction and price arbitrage stabilize energy bills.
Full Service
24/7 monitoring, maintenance, insurance - all on our side. You just receive payments.
Tier 1, EU Certified
Highest quality equipment with European certificates and manufacturer warranty.
Safe LFP Technology
LiFePO₄ - the safest and most stable battery chemistry on the market.
Technical Requirements & Safety
Check if your location meets the requirements
Space Approx. 2-4 parking spaces (outdoor) Utilize unused land
Grid Connection Contracted power above 100 kW Monetize your existing connection
Safety LFP Technology + Aerosol System Highest fire safety standard (non-flammable)
Noise Level Liquid Cooling System Quieter than an air conditioner
Aesthetics Modern IP55 Design Sleek appearance on your premises
Access Service access (once per quarter) We handle all the paperwork
Your safety is our priority
Full Liability Insurance
Sun Valley insures the equipment and installation site. You bear no risk.
24/7 Monitoring
Our operations center monitors battery parameters every second. We detect issues before they occur.
Non-Flammable LFP Chemistry
We use LiFePO₄ cells that do not undergo "thermal runaway" (they don't explode).
FREE SITE AUDIT →
We'll check technical conditions and estimate your connection's profit potential
Our Energy Storage Systems
Proven solutions tailored to your needs
Primary Offering
Z BOX-C 215-2H
Moc znamionowa 105 kW
Pojemność 215 kWh
Typ LFP (LiFePO₄)
Chłodzenie Ciecz
Idealny dla firm 100-500 kW
Skalowalność 1-4 jednostek
System ppoż aerozolowy
IP 55 Outdoor
Enhanced Performance
Z BOX-C PLUS
Moc znamionowa 105 kW
Pojemność 215 kWh
Typ LFP (LiFePO₄)
Chłodzenie Ciecz + Grzanie
Rozszerzony zakres temperatur
Zwiększona żywotność cykli
Zaawansowany BMS
Premium Design
Indoor Solution
Z BOX-I
Moc znamionowa 50-100 kW
Pojemność 100-200 kWh
Typ LFP Indoor
Instalacja Wewnętrzna
Dla pomieszczeń technicznych
Cicha praca
Kompaktowe wymiary
Modułowa budowa
EV Charging
Z BOX-EV
Moc ładowania 150 kW
Magazyn 200 kWh
Złącza CCS2 / CHAdeMO
Typ ESS + Charger
Ładowanie aut elektrycznych
Zmniejszenie mocy przyłączeniowej
Zarabianie na ładowaniu
Integracja z flotą
Utility Scale
Z BOX-P Series
Moc do 2.5 MW
Pojemność 1.3 - 5 MWh
Kontener 20ft / 40ft
Napięcie 1500V
Dla dużego przemysłu >1MW
Projekty wielkoskalowe
Najniższy koszt per kWh
Wsparcie sieci (Grid Services)
Knowledge Base
Learn more about the energy market and technology
BESS Revenue Streams | Complete Guide 2025
Discover all revenue streams from BESS energy storage: FCR, aFRR, arbitrage, peak shaving, capacity market and more. Guide for businesses in Poland.
Read more → Energy Storage for Retail and Logistics: Earn from Unused Space
Shopping centers, logistics parks, and warehouses have ideal conditions for hosting industrial batteries. Check how to turn a parking lot or lawn into a source of passive income.
Read more →
Earning from Grid Services: FCR, aFRR, and Capacity Market
Energy storage is not just backup. Learn how to generate revenue from ancillary services (FCR, aFRR) and the Capacity Market while supporting the stability of the Polish power grid.
Read more →FAQ
Frequently Asked Questions
Answers to the most important questions about Battery as a Service
Any questions? Reach outHow long does installation take?
After signing the agreement, installation typically takes 2-4 weeks, depending on location and electrical infrastructure readiness.
Does this really work without solar panels?
Yes! The battery earns from price arbitrage (we buy energy cheap at night, sell expensive during day) and grid services. Solar panels are not needed.
Who handles maintenance and service?
Sun Valley manages all operations, 24/7 monitoring, and service. You don't have to do anything - just collect revenue.
Can I buy the system in Option 3?
Yes. In Option 3, you start like in Option 1 (no CAPEX), but you have the right to purchase the system at any time according to a fixed valuation formula.
How safe is LFP technology?
LiFePO₄ (LFP) is the safest lithium battery chemistry. The system has a 4-layer safety system, liquid cooling, and an aerosol fire suppression system.
What if my company relocates?
The system can be moved to a new location or purchased according to the set formula. Details are included in the contract and adapted to your situation.
How many companies are already using BaaS?
We are pioneers of the Battery-as-a-Service model in Poland. BaaS has been successfully operating in Western Europe for years, and we are implementing it for Polish companies.
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