The business climate in the solar sector is at an all-time high as nearly one in six German home owners plan to install a system for power or heat generation in the coming 12 months, according to a recent YouGov poll, the German solar industry federation (BSW) said.

The Photovoltaic Business Climate index rose to a record of 149 points up from 140 last year, the highest score since the index was introduced in 2005, the BSW said ahead of the Intersolar exhibition in Munich from Wednesday to Friday.