Our proprietary portfolio of PV power plants produced 11.6 GWh of electricity. On a year-to-date basis, 71.2 GWh of electricity has been produced, compared to 55 GWh during the same reporting period last year, an increase of 29.5%. This increase is a result of the expansion of our proprietary portfolio.
The clean electricity generated by our plants in the first six months of 2021 represents an avoidance of 28,561 tonnes of CO2 emissions.
In August we commissioned the first two utility-scale solar farms for our IPP portfolio in Australia. The plants, which have a combined capacity of 14.6 MWp, were developed, engineered and constructed in-house, and are expected to produce 27.8 GWh of clean electricity per year.
An extraordinary general meeting of shareholders was held on 5 August 2021 to resolve an amendment to the articles of association related to pre-emptive rights. The qualified majority to limit or exclude pre-emptive rights or to designate the management board competent to limit or exclude pre-emptive rights now requires at least 80% of the votes cast.
Shortly after the reporting period, we announced our intention to issue a new corporate bond, initially to be offered by way of an exchange offer to holders of the existing 7.75% 2017/2022 bond (DE000A19MFH4), which will mature on 27 October 2022.