The Black Pear ECO Datenspeicher (‘ECO Data Store’) has been designed for Toshiba to meet the German government’s new energy efficiency/monitoring scheme, with their Estia heat-pump boilers.
A resolution of 10 minutes gives a very detailed picture of the heating efficiency and energy usage of your system.
The data is stored locally within the device (10+ years storage capacity) and can be viewed with any web browser connected to the local network.