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

With real consumption data or synthetic load profiles, you can assess investment, self-sufficiency, and electricity costs with confidence and clarity. This helps you find the right solution, from balcony solar systems to large rooftop installations.

Plan your new PV systemPlan PV size, battery capacity, and economics using your consumption profile.Find your optimal batteryAnalyze consumption and feed-in to find the right battery size for your system.Optimize your electricity tariffCompare fixed and dynamic electricity tariffs using your consumption profile and find the most cost-effective option.

Upload your measurement data
or create a consumption profile

Every analysis is based on your energy profile. You can upload your own consumption, PV, and battery data as CSV or create a synthetic profile from location, household, and system details.

Upload your own dataCSV upload for real consumption, PV, and battery data
  • Use consumption data only or add PV generation and battery flows
  • Columns and sensors are detected automatically, for example from Home Assistant
  • One dataset for every analysis: PV, storage, and tariff
Generate a profileCreate a synthetic load and PV profile if you do not have measurements yet
  • Based on location, household, and planned system details
  • Optionally accounts for EVs, heat pumps, and flexible loads
  • Switch to real measurements at any time later

New Build or Upgrade:
Your Tailored PV + Battery System

Our analysis shows which combination of PV and battery storage fits your consumption, budget, and goals.

  • Compare PV and battery combinations for self-sufficiency and returns
  • See concrete savings based on your consumption profile
  • Get a solid investment recommendation including payback
Plan My System
Roof layout and panel placement
Return heatmap for battery capacity and power

Find Your Perfect Battery Size
Based on Your Goals

Our analysis shows which battery size fits your consumption, PV system, and goals.

  • Compare savings and self-sufficiency across different battery sizes
  • See how economics and payback change with each size
  • Get a clear recommendation for the right battery size
Start Battery Analysis

Are Dynamic Electricity Tariffs
Worth It for You?

Our analysis compares fixed and dynamic electricity tariffs based on your consumption profile and a selected reference year with historical market prices.

  • Compare your consumption profile with hourly price fluctuations
  • See the costs under fixed and dynamic tariffs for your specific case
  • Get a clear recommendation: switch or stay on a fixed tariff
Analyze My Tariff Options
Price profile: fixed vs dynamic

Beta version: feedback welcome

We’re continuously improving Voltary — feedback welcome.

Contact pageEmail info@voltary.de