Net Energy metering (NEM) ndi dzina lachidziwitso chamakampani amagetsi amagetsi amagetsi.Pambuyo pa nthawi ya 1.0, nyengo ya 2.0, chaka chino ikupita mu gawo la 3.0.

Ku California, ngati simuyika mphamvu ya dzuwa mu nthawi ya NEM 2.0, musadandaule.2.0 zikutanthauza kuti ngati muyiyika, simungagulitsenso ku gridi mu nthawi yeniyeni ngati muli ndi magetsi ochulukirapo mwezi uliwonse, ndipo kampani ya gridi idzakhala ndi mtengo wobwezeretsa malinga ndi nyengo, malinga ndi dera. mtengo wobwezeretsa nthawi zambiri umakhala wotsika mtengo kwambiri, monga masenti 4/kWh, kapena masenti 10/kWh.Timagwiritsa ntchito magetsi okwera mtengo kwambiri, koma alibe mtengo wobwezeretsa.M'malo mwake, ngati kukula kwa zipangizo anaika bwino, sipadzakhala olemera magetsi chofunika kugulitsa ku gululi mwezi uliwonse, ife anaika mphamvu ya dzuwa si cholinga cha grid yobwezeretsanso magetsi sangathe kugwiritsidwa ntchito, ife azigwiritsa ntchito magetsi awo otsika mtengo kukhazikitsa mphamvu ya solar, mphamvu ya solar kuti azigwiritsa ntchito okha kuposa kugulitsa zotsika mtengo.

Kotero, nthawi ya 3.0 malinga ngati kuyika kwa zipangizo za kukula koyenera, ngakhale pali magetsi osatha tsiku ndi tsiku, mungasankhe kuti musagulitse ku gridi, sungani nokha.

Batire yosungiramo mphamvu yakunyumba imatha kukuthandizani kusunga magetsi ochulukirapo ndikuigwiritsa ntchito mukafuna.Zotsika mtengo komanso zothandiza.Ndipo musadalire grid yosungirako.

Kuyambira chaka chino, makampani agululi sakufuna kuthandiza ogwiritsa ntchito kusunga magetsi kwaulere, ndipo sakufuna kubwezeretsanso mphamvu ya dzuwa ya aliyense pamitengo yotsika.Kuti poyang'anizana ndi kusintha kwapamwamba kwa ndondomeko ya gridi, njira yatsopano yothetsera vutoli ndikuyika zida za dzuwa ndi mabatire osungira mphamvu kunyumba ndi kuyika!

M'mbuyomu zida zamtengo wapatali, 30,000 zimatha kukhazikitsa zida zoyendera dzuwa.Tsopano kapena kugwiritsa ntchito mawu 30,000, ndizotheka kukhazikitsa mphamvu ya solar kuphatikiza mabatire osungira mphamvu.Kotero mu nthawi ya 3.0 ikhoza kukhala yotsika mtengo kwambiri, palibe chifukwa chodandaula.

Pazosowa zambiri za ogwiritsa ntchito, mwamwayi padziko lonse lapansi, kuphatikiza msika wa US PV ukukula kwambiri, mitengo ya zida chaka chino ikhala yabwino kuposa kale.Oyenera kwambiri kuyika.