Yog tias koj daim nqi hluav taws xob ua lag luam suav nrog cov khoom lag luam xav tau, ncov shaving feem ntau yog ib txoj hauv kev zoo tshaj plaws los coj tus lej ntawd los tsis hloov koj lub chaw ua haujlwm li cas. Peak shaving txhais tau hais tias ua kom koj daim phiaj xav tau qis dua lub qab nthab hauv lub sijhawm luv, siab - lub sijhawm thauj khoom, yog li ntawd ib qho tsis zoo tsis rov pib dua koj cov nqi them txhua hli.
Rau feem ntau C&I qhov chaw, qhov muaj zog tshaj plaws ntawm lub tswv yim no tsis yog hnub ci ib leeg. Nws yog hnub ci ua ke nrog qab ntawm - lub - meter roj teeb cia thiab tus tswj uas tuaj yeem teb tau raws sijhawm. Hnub ci tuaj yeem chais cov nqi hluav taws xob, tab sis nws tsis tas yuav chais lub ncov uas teev koj cov nqi thov. Kev khaws cia muab sijhawm rau koj tswj tau tias PV array tsis tuaj yeem muab rau nws tus kheej.
Yog vim li cas Demand Charges muaj nyob rau hauv thawj qhov chaw
Cov khoom siv hluav taws xob yuav tsum ua kom muaj peev xwm txaus thiab kab sib chaws hauv online kom tau raws li qhov kev thov siab tshaj plaws uas yuav tshwm sim hauv lub xyoo, txawm tias qhov siab tshaj plaws tsuas yog tshwm sim ib zaug xwb. Kev tsim kho thiab tswj xyuas qhov peev xwm tshwj xeeb yog kim, thiab tus nqi raug thawb mus rau hauv kev lag luam tariffs los ntawm kev thov tus nqi.
Feem ntau cov nqi C&I muaj ob yam: tus nqi hluav taws xob raws li tag nrho kWh tau siv, thiab tus nqi thov raws li qhov siab tshaj kW kos thaum lub sij hawm them nqi -feem ntau ntsuas raws li qhov siab tshaj 15-feeb nruab nrab. Nyob rau hauv ntau lub US tariffs, thov tsub nqi account rau 30% mus rau 70% ntawm daim nqi rau nruab nrab thiab loj cov neeg muas zaub, raws li kev tshawb fawb luam tawm los ntawm lubNational Renewable Energy Laboratory. Ib qho 15-feeb spike tuaj yeem raug nqi ntau dua 700 teev tom ntej ntawm kev ua haujlwm ruaj khov. Qhov ntawd yog cov kab khoom ncov shaving yog tsim los tua.
Peak Shaving vs Load Shifting: Yog vim li cas qhov txawv Matters
Ob lo lus no tau siv yuav luag sib hloov hauv cov ntsiab lus muag khoom, tab sis lawv tsom cov khoom sib txawv:
- Peak shavingtxo qhov siab tshaj kW koj qhov chaw rub tawm ntawm daim phiaj. Nws lub hom phiaj xav tau nqi.
- Load hloovtxav kWh noj los ntawm cov sij hawm kim mus rau pheej yig dua, tsis tas yuav txo qhov ncov. Nws tsom mus rau lub sijhawm - ntawm - siv cov nqi zog. Peb phau ntawv qhia rauload hloov nrog lub zog cianpog qhov tob no.
- Load sheddingtxhais tau tias tig loads tawm. Nws tsis tshua pom zoo hauv cov txheej txheem tsim khoom.
Ib lub hnub ci zoo-tsim hnub ci- ntxiv rau- qhov system khaws cia feem ntau ua ob qho tib si ncov shaving thiab thauj khoom hloov, tab sis qhov tseem ceeb hloov pauv cov khoom siv tshwj xeeb. Yog tias qhov kev thov them nqi yog koj qhov mob loj tshaj plaws, loj lub roj teeb rau lub ncov shaving ua ntej.
Yog vim li cas hnub ci ib leeg feem ntau tsis txiav cov nqi thov
Hnub ci tuaj yeem txo cov nqi thov, tab sis tsuas yog thaum PV ntau lawm sib tshooj nrog lub sijhawm koj qhov chaw ua tau nce siab. Qhov kev sib tshooj ntawd tsis tau lees paub, thiab peb qhov xwm txheej ua rau nws tawg:
- Hmo ntuj ncov.Chaw ua haujlwm, khw muag khoom, khw noj mov, thiab ntau lub teeb -cov chaw lag luam siab tshaj thaum 4 teev tsaus ntuj txog 8 teev tsaus ntuj, thaum PV cov zis tau poob lawm.
- Huab-tsav variability.Cov huab dhau los tuaj yeem tso PV tso zis los ntawm 40% mus rau 70% hauv ib feeb. Yog hais tias ib tug spike tsaws thaum lub sij hawm poob, daim phiaj tseem sau tag nrho lub ncov.
- Cov txheej txheem luv luv spikes.Chillers caij tsheb kauj vab, compressors pib, thiab DC ceev- cov xwm txheej them nqi tsim qhov nqaim tam sim no uas PV tsis tuaj yeem cuam tshuam ntawm nws tus kheej.
CovTeb Chaws Asmeskas Lub Tsev Haujlwm Saib Xyuas Hluav Taws Xob Lub Chaw Haujlwm Solar Energy Technologies Officetau sau tseg hauv cov ntawv ceeb toom hais tias PV-tsuas yog xav tau- kev txuag nqi yog qhov chaw siab heev- nyob ntawm thiab yuav tsum tau txheeb xyuas cov ntaub ntawv ntawm lub sijhawm thauj khoom tiag tiag ua ntej xav tias. Lub roj teeb tsis xav tau lub hnub ci ntsa iab thaum lub sijhawm koj thauj khoom dhia- nws tuaj yeem them dhau los ntawm PV lossis tawm - lub zog hluav taws xob, tom qab ntawd tso tawm ncaj qha thaum lub xaib mus txog qhov kev thov.
Hnub ci-Tsuas yog vs Hnub Ci + Cia rau kev thov kom txo nqi
| Muaj peev xwm | Hnub ci nkaus xwb | Hnub ci + Cia |
|---|---|---|
| Offset siv zog nruab hnub | Muaj zog | Muaj zog |
| Txo cov yav tsaus ntuj lossis tom qab- hnub poob siab tshaj | Tsawg kawg | Muaj zog |
| Buffer luv load spikes (hauv qab 15 min) | Tsis muaj zog | Muaj zog |
| Kev ua tau zoo nyob rau hauv huab variability | Tsis ntseeg | ruaj khov |
| Predictable txhua hli thov kev txuag nyiaj | Site- nyob ntawm | Tswj tau ntawm EMS |
Peak Shaving Ua haujlwm li cas nrog hnub ci thiab roj teeb cia
Lub voj voog ua haujlwm yog ncaj nraim. Nws rov ua dua txhua hnub, nrog rau tus maub los ua kom zoo tshaj qhov xa tawm raws li qhov chaw thauj khoom profile thiab cov qauv tariff.
- Them nqi.Lub roj teeb tau them los ntawm PV cov nyiaj seem thaum nruab hnub, lossis los ntawm kab hluav taws xob thaum tawm -cov sij hawm siab tshaj thaum tus nqi qis.
- Saib xyuas.Lub zog tswj kev tswj xyuas qhov chaw xav tau, PV tso zis, roj teeb lub xeev ntawm tus nqi, thiab cov sijhawm them nqi raws sijhawm.
- Tso tawm.Raws li kev ntsuas kev thov nce mus txog qhov ua ntej - teeb qab nthab, EMS xa cov roj teeb lub zog los npog qhov sib txawv.
- Cap.Grid import nyob qis dua qhov pib. Lub ntsuas hluav taws xob sau cov nqi qis dua.
Kho vajtse ib leeg yuav tsis xa cov txiaj ntsig no. Peak shaving yog ib qho teeb meem tswj ntau npaum li teeb meem roj teeb. EMS yuav tsum txiav txim siab, nyob rau lub sijhawm tiag tiag, seb puas yog qhov tseem ceeb ntawm kev thov - kev tswj hwm tus nqi, kev siv tus kheej - siv, lub sijhawm - ntawm - siv arbitrage, los yog backup reserve- thiab cov tseem ceeb tshaj plaws feem ntau tsis sib haum.
Cov Cheebtsam tseem ceeb ntawm Peak Shaving System
| Cheebtsam | Muaj nuj nqi |
|---|---|
| Hnub ci PV array | Tsim rau ntawm - lub zog ntawm qhov chaw thaum nruab hnub, pub cov khoom thauj thiab them lub roj teeb |
| Roj teeb cia (BESS) | Khaws lub zog rau kev tso tawm thaum lub qhov rais xav tau siab tshaj; Kev ntsuas kW txiav txim siab ntau npaum li cas ntawm qhov dav dav nws tuaj yeem npog |
| Lub zog hloov dua siab tshiab (PCS) / inverter | Hloov DC roj teeb lub zog rau AC rau qhov chaw; bi-kev taw qhia rau kev them nyiaj los ntawm daim phiaj lossis PV |
| Zog tswj system | Saib xyuas load, PV, thiab roj teeb lub xeev; txiav txim siab thaum twg yuav tsub nqi thiab tso tawm raws li qhov xav tau pib thiab cov cai tariff |
| Metering thiab interval cov ntaub ntawv | Tracks noj thiab xav tau ntawm 15-feeb daws teeb meem; pub EMS rau kev txiav txim xa tuaj |
Polinovel covkev lag luam thiab kev lag luam cia daws teeb meemintegrate cov khoom no rau hauv ua ntej -engineered sab nraum zoov txee thiab ntim tshuab tsim los rau ncov shaving daim ntaub ntawv.
Thaum Peak Shaving ua rau muaj kev nkag siab zoo rau koj qhov chaw
Peak shaving nyiam them rov qab zoo thaum ob peb ntawm cov xwm txheej no tuav ua ke:
- Qhov kev thov them nyiaj tsawg kawg yog 25% txog 30% ntawm koj daim nqi hluav taws xob txhua hli.
- Cov ntaub ntawv ncua sij hawm qhia tau tias muaj qhov nce ntxiv -txhua hnub, txhua lub limtiam, lossis hloov pauv-raws li- ntau dua li qhov tsis tshua muaj tshwm sim hauv ib xyoos.
- Lub ncov yog tsav los ntawm cov khoom siv uas txheeb xyuas tau (compressors, chillers, txheej txheem kab, EV chargers) es tsis yog tus cwj pwm random.
- Kev tsim khoom tsis tuaj yeem yooj yim rov teem sijhawm kom flatten lub ncov.
- Koj tab tom ntxiv cov khoom siv hluav taws xob tshiab xws li lub nkoj EV them lossis cov txheej txheem hluav taws xob hluav taws xob.
Ib qho tseem ceeb ua ntej - nqe lus nug: Puas yog koj qhov siab tshaj plaws tuaj yeem ua tau txaus rau tus tswj hwm, thiab kim txaus rau qhov kev tswj kom muaj teeb meem nyiaj txiag?
Roj teeb Sizing: Vim li cas kW tseem ceeb tshaj kWh
Ib qho yuam kev kim tshaj plaws hauv cov phiaj xwm shaving ncov yog qhia lub roj teeb los ntawm lub zog (kWh) thiab tsis quav ntsej lub zog (kW). Peak shaving yog ib qho teeb meem ntawm lub zog -koj xav tau tus nqi tso tawm txaus los npog qhov dav dav, ntev npaum li qhov dav dav.
Ib tug practical sizing logic:
- Spike qhov siab txiav txim siab kW.Nrhiav lub ncov rov tshwm sim los ntawm 15-feeb cov ntaub ntawv ncua sij hawm, rho tawm koj lub hom phiaj qab nthab. Qhov txawv yog qhov tsawg kawg nkaus lub roj teeb tawm lub zog.
- Spike duration txiav txim kWh.Muab qhov xav tau kW los ntawm qhov ntev tshaj plaws txuas ntxiv mus, tom qab ntawd ntxiv 20% cia.
- Txheeb xyuas tus nqi C-.Lub roj teeb 500 kWh ntsuas ntawm 0.5C tuaj yeem xa 250 kW xwb. Yog tias koj tus spike xav tau 400 kW, lub roj teeb ntawd tsis ua haujlwm - txawm tias nws tuav lub zog npaum li cas.
Rau kev piav qhia tob dua ntawm qhov sib txawv ntawm lub zog thiab lub peev xwm, saib peb qhov kev tawg ntawmkW vs kWh.
Peb Qhov Kev Ua Phem Uas Mob Peak Shaving ROI
- Piv txwv tias hnub ci ib leeg yuav daws tau nws.Nco ntsoov txheeb xyuas PV-peak overlap tiv thaiv cov ntaub ntawv ib ntus, tsis suav tag nrho txhua hli.
- Sizing los ntawm kWh nkaus xwb.Lub roj teeb uas muaj zog txaus tab sis tsis txaus lub zog tawm yuav tseem nco lub ncov.
- Tsis muaj zog xa logic.Yog tias EMS hluav taws kub hnyiab heev, nws tso nyiaj rau ntawm lub rooj. Yog tias nws kub hnyiab heev, nws tso lub roj teeb ua ntej lub ncov tiag tiag tuaj txog.
Thaum kawg Takeaway
Peak shaving tsis yog hais txog kev siv hluav taws xob tsawg. Nws yog hais txog kev tswj xyuas thaum twg, thiab ntau npaum li cas, koj qhov chaw rub tawm ntawm kab sib chaws ntawm lub sijhawm tiag tiag uas teeb tsa koj daim nqi. Hnub ci txo lub zog tus lej. Lub roj teeb caps lub ncov. EMS ua rau ob qho tib si rov ua dua. Ua ntej cog lus rau kho vajtse, siv sijhawm tiag tiag nrog koj cov nqi se, koj cov ntaub ntawv ncua sij hawm, thiab koj qhov tseem ceeb ntawm kev tswj hwm -peb cov lus teb rau cov lus nug feem ntau ntawm cov khoom spec daim ntawv ua tsis tau. Kev them rov qab feem ntau yog thaj av hauv 4 txog 8 xyoo nyob ntawm qhov xav tau- tus nqi them, cov duab thauj khoom, thiab kev txhawb nqa.
FAQ
Kuv xav tau ntau npaum li cas roj teeb lub zog rau lub ncov shaving?
Ua kom lub roj teeb tso tawm kW mus rau qhov siab ntawm koj lub ncov rov ua dua siab dua koj lub hom phiaj qab nthab, thiab phim nws kWh rau lub ncov lub sijhawm ntev tshaj plaws ntxiv rau 15% mus rau 20% cia. Kev ntsuas fais fab tseem ceeb tshaj qhov muaj peev xwm.
Thaum twg lub hnub ci - tsuas yog ncov shaving tsis?
Nws ua tsis tiav thaum lub ncov tshwm sim tom qab hnub poob, thaum huab cua tshwm sim, lossis luv luv tawg sai dua li PV tuaj yeem teb tau. Nws kuj ua tsis tiav thaum PV qhov loj me me dhau los txheeb ze rau qhov ntsia hlau loj, lossis thaum lub sijhawm cov ntaub ntawv tsis paub meej txog kev sib tshooj ntawm hnub ci ntau lawm thiab qhov chaw siab tshaj.
Peak shaving puas tsim nyog yog tias kuv tariff tsis xav tau tus nqi?
Tsis yog ntawm kev thov- nqi kev lag luam ib leeg. Tab sis qhov chaw cia tseem tuaj yeem them rov qab los ntawm lub sijhawm - ntawm - siv arbitrage, hnub ci tus kheej - noj, thiab tus nqi thaub qab. Ntau qhov chaw siv hluav taws xob tau ntxiv cov nqi thov rau C&I tariffs, yog li cov lus nug feem ntau yog "thaum twg," tsis yog "yog."
Lub roj teeb loj npaum li cas yog qhov zoo rau C&I peak shaving project?
Feem ntau me me - mus rau - nruab nrab cov phiaj xwm kev lag luam av ntawm 100 kW / 200 kWh thiab 500 kW / 1 MWh. Cov chaw lag luam nrog cov txheej txheem loj tuaj yeem xav tau 1 txog 5 MWh. Qhov loj me yog los ntawm cov ntaub ntawv luv luv, tsis yog los ntawm cov cai ntawm tus ntiv tes xoo.
Peak shaving txawv li cas ntawm load hloov?
Peak shaving txo qhov siab tshaj kW koj rub los ntawm kab sib chaws thiab cov hom phiaj xav tau nqi. Load hloov txav kWh noj ntawm lub sij hawm lub sij hawm thiab lub hom phiaj lub sij hawm - ntawm - siv zog npaum li cas. Lub qhov dej zoo-tsim qauv feem ntau ua ob qho tib si.