Online Tool Tracks Apartment Energy Use


"In 2013, the Lithuanian cap­ital, Vil­nius, cre­ated an in­ter­act­ive on­line en­ergy map al­low­ing res­id­ents to ac­cess and com­pare en­ergy per­form­ance data for 4,799 apart­ment blocks in the city. The city hopes the de­tailed and user-friendly in­form­a­tion will spur homeowner as­so­ci­ations to un­der­take en­ergy ef­fi­ciency up­grades that will help the city re­duce its CO2 emis­sions.

To make com­par­is­ons easier, build­ings have been grouped into 15 classes based on en­ergy ef­fi­ciency and color coded for dis­play on the map from green (very good) to purple (very poor). Users can se­lect a par­tic­u­lar build­ing, and then view a pop-up win­dow show­ing en­ergy-re­lated in­form­a­tion, in­clud­ing the build­ing’s en­ergy ef­fi­ciency class for each winter for the three last sea­sons, build­ing type and con­struc­tion year, and monthly en­ergy ef­fi­ciency graphs to date. As a bo­nus fea­ture, the on­line map en­ables users to see the fin­an­cial and en­ergy use be­ne­fits from en­ergy-sav­ing solu­tions, in­clud­ing roof in­su­la­tion, win­dow and door re­place­ment, and heat­ing and vent­il­a­tion sys­tem mod­ern­iz­a­tion."

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Part of Solution

  • Building Energy Efficiency for Cities100

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