Introduction

Welcome to RentalCal.

Above a small video that introduces to RentalCal in English. Here you'll find the background for the information, presented on the website and a summary of the content. Below a link to the RentalCal webtool that helps to make the cost-benefit analysis of an energy efficiency retrofit, the manual and some case stories. 

Though the tool is customized for the conditions in the eight countries participating in the project, we hope that you'll benefit from the use of the tool. Users from other countries might still apply the tool by converting all prices to their national currency and adjusting all technical data to their respective circumstances. However, the results from the tool need to be utilized with even greater precautions! Note that you can adjust the language of the tool using the icon in the upper left corner of the tool.