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Make data-driven decisions about solar, battery storage, and electricity tariffs

Analyze quarter-hourly load data and electricity bills. Compare solar and storage potential, peak shaving, electricity contracts, and demand charges in one transparent workflow.

Plan solar and battery storage

Compare investment options for new or existing commercial sites using measured load data.

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Analyze demand peaks and storage potential

Identify billing-relevant peaks and assess the power and energy a battery would need to provide.

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Compare contracts and offers

Reproduce the current contract and compare alternative offers against the same unchanged load profile.

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Choose your data basis

Every analysis is based on a commercial load profile. Upload your site's quarter-hourly load curve as a CSV or start with a measured, anonymized profile from a real company.

Upload dataFor measured quarter-hourly values from an RLM meter, energy management system, or metering export.
OR
Choose a reference companyChoose from nine measured company profiles across different sectors and demand scales—without your own file.

Plan solar and storage
for your site

Compare investment options for new or existing commercial sites using measured load data.

  • Evaluate solar and storage sizes together
  • Separate energy and demand-cost effects
  • Assess cash flows, payback, and technical limits
Start solar and storage planning
Slide 1 of 3: Load profile and solar generation across the year
Use left and right arrow keys to change slides.
Load profile and solar generation across the yearSizing solar and battery storageInvestment, savings, and payback
Load profile and solar generation across the year

Reduce demand peaks
with suitable battery power

Identify billing-relevant peaks and assess the power and energy a battery would need to provide.

  • Identify annual maximum demand and peak events
  • Model demand charges realistically
  • Compare peak-shaving targets technically and financially
Start demand peak analysis
Slide 1 of 3: Demand peaks across the year
Use left and right arrow keys to change slides.
Demand peaks across the yearQuarter-hour load on the highest-peak dayRequired battery power and capacity
Demand peaks across the year

Compare electricity tariffs
on the same data basis

Reproduce the current contract and compare alternative offers against the same unchanged load profile.

  • Separate supply, grid, and demand costs
  • Compare offers net of VAT on the same data basis
  • Request suitable suppliers or individual offers
Start electricity tariff comparison
Slide 1 of 3: Cost blocks in the current electricity contract
Use left and right arrow keys to change slides.
Cost blocks in the current electricity contractCurrent contract and alternative offerAnnual tariff difference at a glance
Cost blocks in the current electricity contract

Beta version: feedback welcome

Voltary is still in beta. Some bugs, unexpected visual issues, or occasional delays may occur. Because our calculations are computationally intensive, things can take a little longer, especially when demand is high. Your feedback helps us keep developing Voltary in a focused way.

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