Rooftop Solar Panel Installation Rates across Property Types over Past Five Years

Mr Chua Kheng Wee Louis asked the Deputy Prime Minister and Minister for Trade and Industry (a) what is the current proportion of (i) private landed residential, (ii) non-landed residential, (iii) commercial, and (iv) industrial properties that have solar panel installations on its rooftops; and (b) in each of the last five years, what is the number and capacity of solar installations at such private properties.

Currently, 6% of private residential properties have solar panel installations on their rooftops. The number and capacity of grid-connected solar installations on such properties have risen steadily over the past five years (see Table 1).

The number and capacity of grid-connected solar installations deployed by private sector entities across public and private non-residential properties have also risen steadily over the past five years (see Table 2). Due to our current data collection methodology, we do not have data on the proportion of private non-residential properties that have solar installations.