This installation included more than 2,400 photovoltaic panels placed on more than an acre of the roof of the hall. The power generated not only supplies the power to the Audience hall, but also to several surrounding buildings. The installation of solar panels on Vatican-owned land to the north of the capital follows the photovoltaic glazing of the Cortile delle Corazze and the Vignaccia warehouse of the Vatican Museums (350 kilowatts peak for a total production of 500 megawatt hours) and the 5,000 square metre roof of. From 20 December, official inauguration day – and in perfect timing to receive the thousands of faithful and visitors who will flock to the Eternal City for the opening of the Jubilee Year – the glass “roof” of the Vatican Museums' “ Courtyard of the Corazze ” entrance will unveil its new green and. The Vatican, the world's smallest state, is making significant strides toward sustainability, embodying the ecological vision laid out by Pope Francis in his encyclical Laudato si'. Under the leadership of Salvatore Farina, a former Chief of Staff of the Italian Army and current head of the. "The Vatican" has recently completed a solar array or garden upon the 6,000 square yard Paul VI Hall and teamed with a Hungarian carbon offset start-up called Klimafa, making Vatican City the first carbon-neutral state of the world. The challenge was to be able to remove the old concrete roof, create solar farm panels, and install the panels in a way that keeps the. Thanks to a unique photovoltaic plant installed on the roof of the Vatican Audience Hall, the Papal State has been producing 300 MWh of solar energy every year since its installation in 2008. The project was planned and managed by BayWa r. with the PV modules, inverters and its installation.