Calculate solar irradiance (GHI, DNI, DHI, and GTI) for any location and date with accuracy. Our solar irradiance calculator provides estimated W/m² readings, hourly charts, monthly
Calculate solar radiation for your location (city, address, or zip code) with our free solar irradiance calculator.
Best Research-Cell Efficiency Chart NLR maintains a chart of the highest confirmed conversion efficiencies for research cells for a range of photovoltaic technologies, plotted from 1976
This article provides a thorough analysis of electromagnetic radiation in photovoltaic systems, addressing health concerns. It compares the radiation levels of PV systems with household
Normal radiation levels for solar panels and photovoltaic systems can be categorized into various parameters, including sunlight intensity, radiation absorption rates, and external
We have compiled irradiance data for all major towns and cities in the United States of America, United Kingdom, Ireland and much of mainland Europe. Compiled from data collated over a 22 year period,
Learn how to calculate solar irradiance step-by-step for smarter, more efficient solar system designs!
Photovoltaic equations cheat sheet. Easily access the formulas with this cheat sheet
Empa Solar Energy Europe is a leading energy storage equipment manufacturer and integrator based in Poland, serving the European market. We specialize in C&I energy storage systems for factories and warehouses, industrial battery storage systems for heavy-duty applications, factory energy storage systems (ESS) to optimize production, commercial battery energy storage systems (BESS) for retail and offices, enterprise storage solutions for corporate campuses, industrial park energy storage for multi-tenant sites, commercial battery storage for peak shaving, industrial battery storage systems for backup power, and remote base station power solutions for telecom towers. Our portfolio also includes lithium-ion batteries, system-level battery management systems (BMS), energy conversion systems (PCS), energy storage battery system cabinets, communication cabinets for telecom and data centres, integrated PV-storage systems, distributed energy resources, deep discharge battery technology, and containerised BESS. As a full-service provider, we also offer modular battery racks, backup emergency power, and zero‑carbon microgrids. Our advanced lithium‑ion and sodium‑ion solutions ensure safety, scalability, and high performance for commercial, industrial, and utility projects across Europe.
Our modular energy storage portfolio ranges from compact lithium-ion batteries to 20ft/40ft mobile containers and outdoor all-in-one storage cabinets with IP54 protection. We are a leading energy storage equipment manufacturer, offering communication cabinets for 5G/telecom, server racks for data centers, and IP54 rated enclosures for harsh environments. Our stackable design allows flexible capacity expansion, while our grid-forming technology ensures stable off‑grid operation. Whether for remote base stations, off‑grid power systems, backup emergency power, integrated PV-storage or large zero‑carbon parks, our products feature advanced thermal management, deep discharge cycling, and compliance with European and international standards. We also provide professional energy storage system installation and after‑sales support across Europe.