January 21, 2026 – Electricity from the roof for homes or for companies, farmers, clinics or schools is a reality for millions – but anyone who is new to investing has many questions. But more and more owners of solar systems are looking for new solutions, for example how they can increase their own consumption or subsequently integrate a battery.
The 200-page guide “300 Tips: Self-sufficiency with solar power” conveys the diverse opportunities for self-sufficiency with solar power and helps you ask the right questions when talking to architects, specialist planners, installers and authorities.
Achieve as much self-sufficiency as possible
The guide’s range of topics includes photovoltaics, solar power storage, solar electric space heating and hot water, cooling, ventilation and refrigeration technology, electromobility, fuel cells, CHP, small wind power, PVT collectors, price information, rights and obligations as well as tax tips. An extensive address directory for installers and planners makes regional searches and contact easier.
The guide is clearly structured and also provides information on detailed questions such as rent-to-own and loans, converting old systems for your own use and the special opportunities in new buildings. It does not ignore the fire protection of storage systems and provides information about the use of heat pumps and electric cars. The guide also contains a chapter on small wind power, smaller wind generators for farmers or commercial businesses.
Evaluate offers correctly
One example from the variety of topics: cheated solar customers repeatedly report dubious practices in the solar industry or among heat pump providers. How to separate the wheat from the chaff? There are some no-gos that customers should consider when assessing an offer, for example if the provider does not have a headquarters in Germany, if specialist tradesmen cannot show a reference system, if offers are too tempting to be true, if contracts contain too much fine print or if an on-site inspection is not the basis for the offer.
A chapter on technology trends helps to understand the different technologies – from solar modules, inverters, batteries and wallboxes. But instructions are also given for mounting on the roof or on the facade and on the balcony.
Photos of solar projects with short descriptions are collected in a gallery at the end.
The guide is available to download free of charge, but interested parties must provide contact details. pf
Click here to download for free (after registration)
