Beta
ENDENL

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 a PV systemWhich PV capacity and battery size pay off for your household? Simulate yield, self-consumption, and economics before you invest.Plan battery storageHow large should your battery storage really be? Analyze consumption, PV generation, and feed-in before you buy or expand.Compare electricity tariffsIs a dynamic tariff worth it for you? Compare fixed and variable prices using your load profile.

Upload measurement data
or create a consumption profile

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

Upload dataFor consumption, PV, and battery data from smart meters, inverters, or Home Assistant.
Generate a profileFor planning scenarios without measurements, optionally including EVs, heat pumps, and flexible loads.

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

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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