Residential rooftop solar. Image via Flickr user Bernd. https://www.flickr.com/photos/cocreatr/5417864432/in/photolist-9fKYkJ-gts9JW-9dxZcs-9dxXX7-5RwsA-9duTLn-aXSp6v-9duUrx-2dRUst-9dy1cf-9dxZzJ-9dxXHG-9duUcv-9dxXPQ-amp4zo-9duTWv-gCrAfo-3He9XY-9dxYkj-9dxYZY-9dxZ4U-9duVAZ-9duWjg-9dxZ97-9duVwt-c2REkS-2dRQq6-9duUM2-9dxZJG-6Jb6DT-gtsqPt-gtrfrh-6sji9e-2dS8AF-exqUSs-9dxXvy-9dxXyY-9duUnR-4tmVnd-qgona-7V1EbV-9duWci-oLETZG-azjNeb-qsUZej-9vtbz1-6xHxxy-br1dCe-6Qdu7J-6ieG8A
Residential rooftop solar. Image via Flickr user Bernd.