Calculate Your Energy ROI in Minutes
Solar PV, battery storage, and heat pumps — see the numbers before you commit. Precise estimates, expert guidance, and tailored offers for your business.
PV 50 kWp + BESS 75 kWh + HP 40 kW
Mid-size commercial property, Germany
Annual Savings
€17,800
Payback Period
5.4 yrs
From investment
CO₂ Reduction
25 t/yr
Annual offset
10-Year ROI
111%
Net profit after
10 years
Free, no registration required
Avg. savings
35% energy costs
Why Leading Businesses Choose Brinowatt
From first estimate to signed contract — we provide the numbers, the confidence, and the expert guidance.
Reduce Energy Costs
Slash your electricity and heating bills by 20–45% with precisely sized systems optimised for your usage profile.
Predictable Energy Costs
Lock in your energy costs and shield your business from volatile energy markets and future price increases.
Energy Independence
Reduce reliance on the grid. Produce, store, and manage your own clean energy — even during outages.
Fast ROI Analysis
Get a complete financial analysis in under 5 minutes — no spreadsheets, no consultants, no waiting.
Europe-Ready Calculations
Country-specific electricity prices, solar yields, installation costs and incentive assumptions built in.
Expert Follow-Up
Every analysis triggers a tailored offer from certified energy specialists. Real advice, not generic quotes.
Choose the Right Energy Solution
Calculate the financial return of individual technologies or model combined systems for maximum impact.
Solar PV
Harness solar energy to power your operations directly. Ideal for businesses with roof or ground space and daytime electricity demand.
- 25-year system lifespan
- Zero fuel cost operation
- Feed-in tariff revenue
- Scalable from 3 kWp
Battery Storage
Store excess solar energy or charge at low-cost off-peak periods. Maximise self-consumption, enable backup power, and shave peak demand.
- Peak demand shaving
- Backup power capability
- Grid arbitrage
- 12+ year lifespan
Heat Pumps
Replace gas or oil heating with efficient heat pump technology. Up to 3.5× more efficient than resistance heating — dramatically cut heating costs.
- 3.0–4.5× COP efficiency
- Heating & cooling
- CO₂ emissions cut 60–80%
- 20-year lifespan
From Data to Decision in 4 Steps
No engineering degree required. Our guided calculator turns your business data into actionable investment intelligence.
Choose Your Solution
Select from solar PV, battery storage, heat pumps, or a combination. Tell us what you're considering and we'll tailor the analysis.
Enter Your Details
Provide your energy consumption, building data, and location using our guided form. Smart defaults mean it takes less than 5 minutes.
Get Your ROI Estimate
Our engine instantly calculates projected savings, payback period, and 10-year returns — with conservative, standard, and optimistic scenarios.
Receive a Tailored Offer
Submit your contact details and our certified energy specialists will review your data and send a customised proposal within 24 hours.
Free · No registration required · Results in 5 minutes
Real businesses, real numbers
Three small businesses that ran the numbers before spending a euro.
"Two ovens running from 4 a.m. and a wall of fridges — electricity was our second-biggest cost after flour. The calculator suggested 30 kWp and was honest about the payback: just under four years, not the two every salesman kept promising. We signed knowing exactly what we were getting into."
"A workshop doesn't look like a big consumer until you add up the lifts, the compressor and the paint booth. We put 25 kWp on the roof. The estimate said about €6,500 a year — after our first full year, we were within a few hundred euros of that."
"We're seasonal — packed from May to October, quiet all winter. I'd assumed solar made no sense for a business like ours. The calculator showed the opposite: peak sun is exactly our peak season. Panels plus a heat pump for hot water, and summer now pays for the winter."
* Composite stories based on typical European SME projects; names and details are illustrative. Your results depend on your site, sector, and country.
Frequently Asked Questions
Everything you need to know before starting your calculation.
Ready to See What Energy
Solutions Can Do for Your Business?
Join 500+ European businesses who've used Brinowatt to evaluate, plan, and execute profitable energy investments — with real numbers, real experts, and real results.