/groups/energy/search/index.rss?tag=hotlist/groups/energy/search/?tag=hotWhat’s HotHotListHot!?tag=hot0/groups/energy/sidebar/HotListNo items tagged with hot.hot/groups/energy/search/index.rss?sort=modifiedDate&kind=all&sortDirection=reverse&excludePages=wiki/welcomelist/groups/energy/search/?sort=modifiedDate&kind=all&sortDirection=reverse&excludePages=wiki/welcomeRecent ChangesRecentChangesListUpdates?sort=modifiedDate&kind=all&sortDirection=reverse&excludePages=wiki/welcome0/groups/energy/sidebar/RecentChangesListmodifiedDateallRecent ChangesRecentChangesListUpdateswiki/welcomeNo recent changes.reverse5search
ROI (return on investment)
TCO (total cost of ownership)
PV panel
120 Watts
$240
Solar thermal
3 kW
$800
Wind
400W
$600
~Energy
Comments