Home & Energy
Sustainable solutions for your home, heating, and mobility — backed by real numbers. Whether you are planning a solar installation, comparing heat pump options, switching to an electric vehicle, or simply trying to understand your monthly utility bills, these tools give you instant, formula-based answers.
All calculators are tailored to the German energy market — including current electricity tariffs, the national CO² price (CO²-Preis), German heat pump subsidies (BEG/BAFA 2026), and German commuter tax rules (Pendlerpauschale). Fully explained in English for expats and international homeowners.
Every calculation runs in your browser. No energy consumption data, no personal information, and no location data is ever transmitted or stored.
Solar & Heating
Tools for homeowners investing in renewable energy or comparing heating systems. Calculate your expected PV yield, find out if a heat pump makes financial sense for your home, check which 2026 subsidies you qualify for, and compare annual heating costs across all major fuel types — gas, oil, heat pump, pellets, and district heating.
PV Yield Calculator
Calculate your expected annual solar energy output based on roof area, orientation, tilt angle, and your location in Germany — with payback period estimate.
Open ToolPV Autarchy Calculator
Find out what percentage of your electricity needs your solar system can cover — with and without battery storage, based on your consumption profile.
Open ToolHeat Pump Cost Calculator
Estimate total installation and annual running costs for air-to-water or ground source heat pumps — compared against your current heating system.
Open ToolHeat Pump Efficiency (SPF)
Simulate your heat pump's Seasonal Performance Factor based on system type, climate zone, and building insulation level — see your real-world efficiency.
Open ToolHeat Pump Subsidy Check 2026
Check which German government subsidies (BEG, KfW, BAFA) you qualify for when installing a heat pump in 2026 — with estimated grant amounts.
Open ToolHeating Cost Calculator
Compare annual heating costs for gas, oil, heat pump, district heating, and wood pellets — based on your home's energy consumption in kWh per year.
Open ToolCarbon Price Calculator
Calculate the CO² levy (CO²-Preis) added to your gas or oil heating bills under Germany's national carbon pricing scheme — and how it rises through 2027.
Open ToolMobility & Transport
From comparing the true total cost of an EV vs. a gasoline car to calculating your German commuter tax deduction — this section covers all vehicle-related financial decisions. Includes tools for Vehicle-to-Home (V2H), Vehicle-to-Grid (V2G), THG carbon credit earnings, and payload compliance for EU vehicles.
EV vs. Gas Cost Calculator
Compare the full 5-year ownership cost of electric vs. gasoline vehicles in Germany — purchase price, fuel/charging, insurance, tax, and maintenance included.
Open ToolEV Charging Time Calculator
Calculate how long it takes to charge your EV from any state of charge to full, based on your battery capacity and charger power (AC 3.7–22 kW, DC up to 350 kW).
Open ToolTHG Quota Calculator
Estimate your annual THG carbon credit payout as an EV owner in Germany — the money you receive for registering your charging data with a quota trader.
Open ToolVehicle-to-Home (V2H)
Calculate how much of your household electricity needs your EV battery can cover using V2H technology — with estimated savings and required inverter specs.
Open ToolVehicle-to-Grid (V2G)
Estimate potential earnings from feeding your EV battery power back into the electricity grid during peak demand periods — based on current spot prices.
Open ToolPayload Calculator EU
Check whether your loaded vehicle stays within EU legal payload limits — useful for vans, campervans, trailers, and commercial delivery vehicles.
Open ToolTransport Route Planner
Plan transport routes with fuel cost calculations, toll estimates, and time analysis — useful for business trips, deliveries, and logistics planning.
Open ToolTravel Cost Calculator
Calculate the full reimbursable cost of a business trip in Germany — mileage, per diem (Tagegeld), accommodation, and public transport combined.
Open ToolCommuter Tax Deduction
Calculate your annual German Pendlerpauschale tax deduction based on commute distance, working days per year, and transport method (car or public transit).
Open ToolCompany Car Tax Calculator
Calculate the monthly income tax burden of a company car in Germany using the 1% rule (Listenpreis) or the logbook method (Fahrtenbuch) — side by side.
Open ToolHousehold
Tools to understand and control your everyday home costs — from electricity tariff breakdowns and full utility bill estimates to a complete monthly household budget planner. Also includes a data-driven analysis of AI vs. human labor costs for businesses considering process automation.
Electricity Cost Calculator
Calculate your monthly and annual electricity bill based on consumption (kWh), current tariff, German grid fees, and the renewable energy surcharge (EEG).
Open ToolUtility Cost Calculator
Estimate your total monthly utility costs for water, heating, electricity, internet, and waste disposal — typical benchmarks for German apartments and houses.
Open ToolHousehold Budget Calculator
Plan your full monthly household budget with income, fixed costs, variable expenses, and savings goals — see where your money goes at a glance.
Open ToolAI vs. Human Cost Analysis
Compare the cost of using AI tools vs. hiring human employees or freelancers for common business tasks — with hourly rates, output volume, and ROI breakdown.
Open ToolFrequently Asked Questions
Common questions about the Home & Energy tools on LocalCalcs.
How accurate is the PV Yield Calculator for Germany?
The calculator uses average solar irradiation values (kWh/m²/year) for major German regions and applies standard efficiency losses for inverter, wiring, shading, and temperature. Results are estimates within a typical range of ±10–15% of actual output. For investment decisions, a certified energy consultant or a solar installer with site-specific measurements will give you more precise figures.
Which heat pump subsidies are included in the 2026 Subsidy Check?
The tool covers the three main German subsidy programs: the Bundesförderung für effiziente Gebäude (BEG) via BAFA grants (up to 70% for low-income households replacing oil heating), KfW energy-efficiency loans with low interest rates, and regional top-up programs available in some Bundesländer. Subsidy rates and eligibility criteria reflect the rules valid from January 2026.
What is the THG Quota and how does the THG Calculator work?
The THG Quota (Treibhausgasminderungsquote) allows EV owners in Germany to sell their annual charging data to fuel suppliers, who use it to offset their CO² obligations. The payout typically ranges from €50 to €200 per year depending on market prices and your EV's battery size. The calculator estimates your expected payout based on current average market rates — actual amounts vary by provider.
How is the German Pendlerpauschale (commuter deduction) calculated?
The Pendlerpauschale allows you to deduct €0.30 per km for the first 20 km and €0.38 per km from km 21 onwards (as of 2026) for each working day you commute. The calculator multiplies your one-way distance by your annual working days and applies the current rates automatically — giving you the annual deductible amount to enter in your German tax return (Einkommensteuerklärung).
Does the EV vs. Gas Cost Calculator account for German-specific costs?
Yes — the calculator uses current average German electricity prices (approx. 0.30–0.35 €/kWh for household tariffs), German fuel prices, KfW charging infrastructure grants, and standard German vehicle tax (Kfz-Steuer) differences between EVs (exempt) and combustion vehicles. All values are updated for 2025/2026.
Is my energy consumption or address data stored?
No — all calculations run entirely in your browser using JavaScript. No consumption data, no location, and no personal information is ever transmitted to a server, stored in a database, or shared with third parties. Your inputs are gone as soon as you close or refresh the page.
Understanding Germany's Energy Transition — From Your Home's Perspective
Germany's Energiewende — the national transition away from fossil fuels toward renewable energy — directly affects every household and vehicle owner in the country. For homeowners, it means navigating a complex landscape of solar installation grants, heat pump subsidies (BEG/BAFA), rising CO₂ levies on gas and oil, and an electricity market where prices can vary dramatically by tariff and region. For drivers, it means weighing the true total cost of switching to an EV against a background of changing charging infrastructure, THG carbon credit payouts, and company car tax rules that still favour electric vehicles through 2030.
What makes the German energy system particularly challenging for international residents and expats is that most of the official guidance — from the Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) to the Kreditanstalt für Wiederaufbau (KfW) — is only available in German. Subsidy eligibility rules, CO₂ pricing schedules, and commuter deduction (Pendlerpauschale) rates are updated frequently, making it difficult to find accurate, up-to-date information in plain English.
The tools in this section are built specifically to bridge that gap. Whether you are calculating whether a heat pump pays off faster than keeping your gas boiler, estimating your PV system's annual yield before signing with an installer, or simply trying to understand why your monthly electricity bill has increased — each tool uses current 2025/2026 German rates and regulations, with clear explanations of how every number is derived.
Embed this Calculator on Your Website
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