RATIOXA ENERGY · Decision tool
Does battery storage pay?
Evaluate investment, usable cycles, price spread, efficiency, degradation and NPV.
9 inputsDetailed comparisonSaved locally on this device.
DECISION PACK
Does battery storage pay?
Created: 18/08/2026 · battery-storage@5.0
Important: Actual yield and consumption may differ from the assumptions.
Result · Why?
Investment leads by €5,702
A battery becomes economic only when enough energy is shifted at a sufficient price spread.
Difference€5,702
Discounted benefit
Investment
Break-even
Discounted payback
Time until discounted savings cover the investment.
Result robustness
Robust within tested range
The leading option remains ahead across the automatic ±10% input tests.
- InvestmentApprox. change in result: €900
- Usable capacityApprox. change in result: €419
- Full cycles per yearApprox. change in result: €419
RATIOXA STORY
Your Decision Story
- 1
Discounted benefit: €3,298
- 2
Investment: €9,000
- 3
Investment leads in the base case.
Calculation Health
Quick estimate
Add more of your own values to strengthen the scenario.
- + Investment
- + Usable capacity
- + Full cycles per year
RATIOXA IMPACT MAP
What matters most?
Investment€900
Usable capacity€419
Full cycles per year€419
Value per shifted kWh€419
System efficiency€419
Period€242
Higher impact →Key insight
Your decision is most vulnerable to changes in Investment.
A battery becomes economic only when enough energy is shifted at a sufficient price spread.
SCENARIO RANGE · DETERMINISTIC
Stress-test this decision
RATIOXA ×
Discounted payback
Time until discounted savings cover the investment.
Crossover—
Compare everything
Discounted benefitInvestment
Result value€3,298€9,000
Difference—€5,702
Gross savings€5,567€9,000
Operating cost€1,200—
RATIOXA FLOW
Next useful steps
SCENARIO RANGE
Conservative · Base · Optimistic
Locked assumptions
TRUST CHECK
Fair Comparison Check
- ✓Same comparison horizon
- ✓Comparable cash flows
- ✓Residual values and balances included
- ✓Inputs are internally consistent
Not included in the model
- Contract terms, eligibility and taxes outside the entered values
- Personal risk tolerance and liquidity needs
- Professional legal, tax, finance or energy advice
Assumption freshness
Decision readiness
0/9 inputs replaced with your own or transferred values · 4 real-world details still worth checking
- ○ Have both alternatives been compared over the same period?
- ○ Are all one-off costs and fees confirmed?
- ○ Are resale value, remaining debt and end assets documented?
- ○ Have you tested a cautious range for uncertain assumptions?
TRANSPARENT MATH
Formula inspector
Calculation steps
- Savings = usable capacity × cycles × price spread × efficiency.
- Degradation reduces usable capacity each year.
Substitution with your values
Sum of displayed components A = 5567.43 + 1200.00 = 6767.43Sum of displayed components B = 9000.00 = 9000.00Total: 3298.02 / 9000.00Important: Actual yield and consumption may differ from the assumptions.
WHAT-IF
Snapshot current scenario
IMPORTANT DOCUMENTS
Prepare the decision
● Saved locallyQUESTIONS TO ASK
Ask before you sign
- Which performance is guaranteed?
- Which maintenance and extra costs apply?
- Which assumptions does the economics calculation use?
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