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The end of coal power is soon
The energy transition to renewable energies comes too fast for the big German utilities. They have ignored the upcoming energy transition for many years and had installed the wrong power plants. Solar energy is going to destroy their business model right now. This is why we see the final showdown between solar energy and the classical energy industry. Solar energy seems to kick them out of the grid soon. more...

Many people associate solar electricity generation directly with photovoltaics and not with solar thermal power. Yet large, commercial, concentrating solar thermal power plants have been generating electricity at reasonable costs for many years.. more...

Solar thermal wather heating Solar thermal water heating
An enormous market in China, ambitious targets in the EU but what are the basics of solar water heating? This article describes the principles and technology for using solar energy to heat water, and looks at applications for domestic hot water and space heating. more...
[All articles]

Photovoltaic basics: understanding solar cells

The sun as an energy resource: fundamentals of our main energy source

Solar thermal power plants: how do these power plants work?

Photovoltaic systems: photovoltaic basics

[All articles]

Statistics Data Service
In general statistics are not very interesting. In the field of renewable energies and climate protection they show the ongoing development. This leads to trends that are surely not boring. Therefore, this data service offers material on different subjects. more...

Renewable electricity generation in Germany: steady growth

Renewable electricity capacity in Germany: success story of wind power

Carbon dioxide emissions in the world: the trend still goes up

[All statistics]

Software Online applications
A collection of interesting tools helps with the calculations for several problems. If you need to convert energy units, to calculate the performance of wind power plants or to estimation the position of the sun, you will find the solution here. more...

Sun position calculation: when is it sunrise where?

Unit of energy calculator: conversion of kJ, kWh, kcal and more

US to metric unit converter: Fahrenheit, cups and acres

Wind park performance analysis: this amount of electricity can be expected

[All tools]

Renewable Photos Photographs
Contrary to most conventional power plants renewable energy technologies are nice to look at. Several photo series show this with images on different themes of renewable energies. more...

Concentration solar power: solar thermal electricity generation in Spain

Renewable energies in Spain: renewables under the Spanish sun

Solar and wind resource measurements: estimating the power of wind and sun

[All photo series]
    Energy Transition in Germany

Disclaimer Solaranlagen, Photovoltaik, Solarthermie