Net makamashi metering (NEM) shine lambar sunan tsarin tsarin lissafin wutar lantarki na kamfanin grid.Bayan zamanin 1.0, zamanin 2.0, wannan shekara tana shiga cikin lokaci na 3.0.

A California, idan ba ku shigar da wutar lantarki a cikin lokaci don NEM 2.0 ba, kar ku yi nadama. 2.0 yana nufin cewa idan kun shigar da shi, ba za ku iya sayar da shi zuwa grid a ainihin lokacin ba idan kuna da wutar lantarki mai yawa a kowane wata, kuma kamfanin grid zai sami farashin farfadowa bisa ga kakar, bisa ga yankin, kuma farashin dawowa yana da arha sosai, kamar 4 cents / kWh, ko 10 cents / kWh. Muna amfani da wutar lantarki mai tsada sosai, amma ba su da tsadar farfadowa. Sabanin haka, idan an sanya girman kayan aikin da kyau, ba za a sami wadataccen wutar lantarki da ake bukata don sayarwa ga grid kowane wata ba, mun sanya makamashin hasken rana ba don manufar grid sake amfani da wutar lantarki ba, za mu yi amfani da nasu wutar lantarki mai arha don shigar da hasken rana, wutar lantarki don amfanin kansu fiye da sayar da farashi mai tsada.

Don haka, zamanin 3.0 idan dai an shigar da kayan aikin da ya dace, koda kuwa akwai ƙarancin wutar lantarki a kowace rana, za ku iya zaɓar kada ku sayar da shi zuwa grid, ajiye shi don kanku.

Batirin ajiyar makamashi na gida zai iya taimaka maka adana rarar wutar lantarki da amfani da shi lokacin da kake so. Mai arha kuma mai dacewa. Kuma kar a dogara ga ma'ajiyar grid.

Tun daga wannan shekarar, kamfanonin grid ba sa son taimakawa masu amfani da wutar lantarki don adana wutar lantarki kyauta, kuma ba sa son sake sarrafa wutar lantarki ta kowa da kowa a farashi mai rahusa. Cewa a fuskar sake fasalin tsarin tsarin grid, sabon mafita shine shigar da kayan aikin hasken rana da batir ajiyar makamashi na gida tare da shigarwa!

A baya saitin kayan aiki masu tsada, kashe 30,000 na iya shigar da saitin kayan aikin hasken rana kawai. Yanzu ko kashe kalmomi 30,000, yana yiwuwa a shigar da saitin makamashin hasken rana da batura masu ajiyar makamashi. Don haka a cikin zamanin 3.0 har yanzu yana iya zama mai tsada sosai, babu buƙatar nadama.

Ga yawancin buƙatun mai amfani, sa'a na duniya, gami da kasuwar PV ta Amurka tana ƙara girma, farashin kayan aiki a wannan shekara zai fi kowane da. Ya dace sosai don shigarwa.