Release notes, new features and roadmap for the PV-Calor calculators.
Read more: Calculator Updates: New Features & ReleasesBuilding Energy and Renewable Energy Knowledge Base
Technical articles and guides covering photovoltaics, heat pumps, heating load calculations and energy-efficient building renovation.
Heating load and heat demand calculation according to DIN EN 12831, U-values, annual heat demand, thermal bridges and renovation measures.
Read more: Heating Load: Calculation, Fundamentals & Practical Tips
From kW to COP, from efficiency to SPF – the reference guide for technical metrics.
Read more: Key Figures and Formulas
Powerstations and compact storage for balcony solar systems – the straightforward entry into home power generation.
Read more: Balcony Solar: Installation & Requirements
Heat pump fundamentals, types, key figures and the ideal combination with photovoltaics.
Read more: Heat Pumps: Function, Types & Costs 2026
Battery technologies, system topologies and market trends for solar systems explained clearly.
Read more: Battery Storage: Technologies, Costs & Buying Guide 2025
Fundamentals, structure and key figures of photovoltaic systems explained clearly.
Read more: Photovoltaics: Fundamentals, Technology & Economics