|Finally some solar panels on our roof in Norway.|
It turned out that I could get the 250Wp 1 x 1.6m solar panels for NOK 2500,- each from Norsk-Solenergi AS which was down NOK 1000,- from the best price found a year before.
|250W Micro-inverter from Power-One|
|Planning the Trunk-Bus cable layout prior to installation.|
|Each solar panel is a power plant.|
In order to use the micro-inverters you also need a Power-One CDD (Concentrator Data Device) foreach installation. The integrated web server is used for setting up the installation and for detailed monitoring of each micro-inverter, such as temperature and status.
|This is how the system connects together for setup and monitoring.|
The CDD collects data from each micro-inverter and connects to the web interface for displaying it. Anyone with the link can view our solar production: Medhus residence solar production live The panels are mounted at SE at 14 degrees angle up from horizontal.
|Only panels that are in the shade of the light pole have a lower output. Others are at full production. (From the web interface)|
|Getting a free pluss-minus meter|
We had a meter from 1977 and needed a new one that can measure current flowing in both direction. Hafslund Nett came on a few days notice and installed one for free. The lady that showed up was great. She juste LOVED to install meters. Could not wait until the huge roll out of new meters that shall be completed by 2017.Then everyone in Norway will be ready for solar metering. Hafslund Nett is ready for new solar customers with gried-tie feed in, but many other places in Norway you should not expect this yet.
Our local paper had a story on our installation in July 2014
which is also on the web as Krafttak gir el-overskudd (Norwegian) together with Vil ha 40% investeringsstøtte på solstrøm (Norwegian only).