Nkag siab Off-Grid Solar Systems: Koj Txoj Kev mus rau Kev ywj pheej zog

Hauv lub ntiaj teb no tau tsom mus rau kev ruaj khov thiab kev ywj pheej ntawm lub zog, off-grid solar systems tau dhau los ua ib qho kev daws teeb meem rau cov neeg uas tab tom nrhiav kev txiav tawm ntawm cov khoom siv hluav taws xob. Tab sis dab tsi raws nraim yog lub hnub ci off-grid, thiab nws ua haujlwm li cas? Tsab ntawv xov xwm no yuav qhia koj txog cov hauv paus ntsiab lus, los ntawm cov khoom tseem ceeb mus rau cov kev sib tw tsim thiab cov kauj ruam kom ua tiav txoj kev ua neej nyob sab nraud.

Dab tsi yog Off-Grid Solar System?

Lub hnub ci off-daim phiaj hnub ci yog ib qho kev siv hluav taws xob tauj dua tshiab uas tso cai rau koj los tsim hluav taws xob ntawm nws tus kheej, tsis muaj kev cia siab rau daim phiaj hluav taws xob. Hom kab ke no tshwj xeeb tshaj yog muaj txiaj ntsig zoo hauv thaj chaw deb uas txuas rau daim phiaj xwm tsis ua tau lossis rau cov tib neeg nrhiav kev txaus siab rau lawv tus kheej hauv lawv lub zog siv.

Tsis zoo li kab sib chaws khi, uas pub ntau lub zog rov qab rau hauv kab sib chaws, ib qho kev tawm-grid system khaws txhua lub zog tsis siv hauv cov roj teeb rau kev siv tom qab. Qhov no txhais tau tias koj tuaj yeem muaj zog txawm tias lub hnub tsis ci, xws li thaum hmo ntuj lossis hnub huab cua.

Yuav Ua Li Cas Off-Grid Solar Systems Ua Haujlwm

Off-grid solar systems ua haujlwm los ntawm kev hloov lub hnub ci mus rau hauv hluav taws xob siv cov hnub ci vaj huam sib luag. Cov hluav taws xob tsim tawm yog tom qab ntawd muab khaws cia rau hauv cov roj teeb thiab tswj hwm los ntawm inverter, uas hloov cov hluav taws xob ncaj qha (DC) uas tsim los ntawm cov vaj huam sib luag rau hauv qhov hloov tam sim no (AC) siv los ntawm cov khoom siv hauv tsev feem ntau.

Cov Cheebtsam tseem ceeb ntawm Off-Grid Solar System

Kev nkag siab txog cov ntsiab lus ntawm lub hnub ci off-grid yog qhov tseem ceeb rau kev teeb tsa kev txhim khu kev qha thiab ua haujlwm tau zoo. Txhua feem ua lub luag haujlwm tseem ceeb hauv kev ua kom koj lub tsev muaj hluav taws xob tsis tu ncua.

Hnub Ci Vaj Huam Sib Luag

Hnub ci vaj huam sib luag yog qhov pom zoo tshaj plaws ntawm txhua lub hnub ci. Cov vaj huam sib luag no ntes lub hnub ci thiab hloov mus rau hauv hluav taws xob. Tus naj npawb thiab kev ua haujlwm ntawm koj cov panels txiav txim siab npaum li cas lub zog koj lub cev tuaj yeem tsim tau.

Roj teeb

Cov roj teeb yog cov pob txha ntawm lub hnub ci off-grid. Lawv khaws cov hluav taws xob tsim los ntawm lub hnub ci vaj huam sib luag kom koj tuaj yeem siv nws thaum lub hnub tsis ci. Muaj ntau hom roj teeb muaj, nrog rau cov roj teeb lithium-ion yog qhov ua tau zoo tshaj plaws thiab siv tau ntev.

Inverter

Lub inverter yog lub luag haujlwm rau hloov DC hluav taws xob uas tsim los ntawm lub hnub ci vaj huam sib luag rau hauv AC hluav taws xob, uas tuaj yeem siv los ua hluav taws xob rau koj cov khoom siv hauv tsev. Yog tsis muaj inverter, hluav taws xob tsim los ntawm koj lub hnub ci vaj huam sib luag yuav tsis sib haum nrog koj cov khoom siv hauv tsev.

Charge Controller

Tus nqi tswj tswj qhov voltage thiab tam sim no los ntawm lub hnub ci vaj huam sib luag rau cov roj teeb. Nws xyuas kom meej tias cov roj teeb tau them zoo thiab tiv thaiv kom tsis txhob muaj overcharge, uas tuaj yeem ua rau lawv puas tsuaj.

Kev sib tw hauv kev tsim ib qho Off-Grid Solar System

Tsim ib lub hnub ci off-grid los nrog nws tus kheej cov teeb meem. Cov no suav nrog kev xaiv cov khoom tsim nyog, ua kom muaj kev sib raug zoo ntawm lawv, thiab ua tau raws li koj qhov kev xav tau ntawm lub zog yam tsis muaj kev vam khom rau daim phiaj.

Integrating Inverters thiab roj teeb

Ib qho ntawm qhov nyuaj tshaj plaws ntawm kev tsim lub hnub ci off-grid yog kev sib koom ua ke ntawm inverter thiab roj teeb zoo. Cov Cheebtsam no yuav tsum ua haujlwm ua ke tsis sib haum los muab lub zog muaj zog.

Tesla's Powerwall

Tesla's Powerwall yog qhov kev xaiv nrov rau cov tswv tsev tab tom nrhiav kom yooj yim rau kev sib koom ua ke. Qhov kev daws teeb meem tag nrho no ua ke nrog lub roj teeb, inverter, thiab kev tswj hwm lub zog rau hauv ib chav tsev, ua rau kev teeb tsa yooj yim dua thiab txo qhov xav tau ntawm ntau yam khoom.

Lub Powerwall yog tsim los ua haujlwm seamlessly nrog lub hnub ci vaj huam sib luag, khaws cia ntau lub zog tsim tawm thaum nruab hnub thiab ua rau nws muaj thaum xav tau. Qhov no txo ​​qhov nyuaj ntawm kev teeb tsa thiab txo qhov kev pheej hmoo ntawm kev sib raug zoo ntawm cov khoom sib txawv.

OKEPS Integrated Systems

Lwm qhov kev xaiv zoo tshaj plaws rau kev ua kom yooj yim rau kev tsim thiab kev teeb tsa ntawm lub hnub ci off-grid is the OKEPS integrated system. Zoo li Tesla's Powerwall, OKEPS muaj kev daws teeb meem tag nrho uas suav nrog lub roj teeb, inverter, thiab lwm yam khoom tsim nyog.

Ib qho txiaj ntsig tseem ceeb ntawm OKEPS systems yog lawv qhov yooj yim ntawm kev teeb tsa. Vim tias tag nrho cov khoom tsim los ua haujlwm ua ke, cov txheej txheem kev teeb tsa tau yooj yim, thiab tsis xav tau kev daws teeb meem kev sib raug zoo. Tsis tas li ntawd, OKEPS cov tshuab tau paub txog lawv txoj kev ntseeg siab thiab ua haujlwm ntev, ua rau lawv muaj kev xaiv zoo rau cov uas tab tom nrhiav kev nqis peev hauv kev daws teeb meem mus sij hawm ntev.

Yog xav paub ntxiv txog OKEPS kev sib koom ua ke, mus saib lawv cov nplooj ntawv cov khoom kom ntxawsntawm no.

Yuav Ua Li Cas Xaiv Txoj Cai Off-Grid Solar System

Xaiv txoj cai off-grid solar system yuav nkag siab txog koj lub zog xav tau, txiav txim siab qhov loj ntawm koj lub cev, thiab xaiv cov khoom tsim nyog. Hauv qab no, peb yuav sib tham txog cov xwm txheej, muab cov qauv kev suav, thiab muab cov phiaj xwm pom zoo los pab koj txiav txim siab zoo tshaj plaws.

Kev Ntsuas Koj Lub Tsev Kev Siv Hluav Taws Xob

Thawj kauj ruam hauv kev xaiv txoj cai off-grid solar system yog xam koj lub tsev lub zog noj. Qhov no yuav muab koj lub tswv yim ntawm ntau npaum li cas lub zog koj lub cev xav tau los tsim thiab khaws cia kom tau raws li koj cov kev xav tau niaj hnub.

Common Case: Kev Siv Hluav Taws Xob Hauv Tsev Nruab Nrab

Cia peb xav txog ib tsev neeg uas siv 30 kWh (kilowatt-teev) ib hnub. Lub tsev no yuav muaj cov khoom siv xws li lub tub yees, lub tshuab ntxhua khaub ncaws, lub teeb, thiab lub TV.

Cov mis laij lej: Kev siv zog txhua hnub

Txhawm rau xam koj lub zog noj txhua hnub:

$\text{Kev siv hluav taws xob txhua hnub (kWh)}=\text{Tag Nrho Kev Siv Hluav Taws Xob ntawm Txhua Cov Khoom Siv (kWh)}$

Piv txwv li:

• Lub tub yeesPEB: 1.5 kWh/d
• Tshuab ntxhua khaub ncaws: 0.5 kWh / siv, siv 3 zaug hauv ib lub lis piam =Luas = 0.5 x 37 = 0.21 x 0.5 x 7 = 0.2170.5×3cov=0.21 ibkWh/hnub
• Teeb pom kev zooPEB: 0.6 kWh/d
• TVPEB: 0.3 kWh/d

Tag nrho:$1.5+0.21\; ib+0.6+0.3=2.61\; ib$kWh/hnub rau cov khoom siv no xwb.

Txawm li cas los xij, yog tias koj ntxiv cov cua sov, cua txias, thiab lwm yam khoom siv, koj tuaj yeem ncav cuag qhov nruab nrab ntawm 30 kWh / hnub.

Xaiv txoj cai roj teeb cia

Thaum koj tau txiav txim siab koj lub zog noj txhua hnub, cov kauj ruam tom ntej yog xaiv lub roj teeb kom raug. Lub peev xwm roj teeb yuav tsum loj txaus los khaws lub zog rau hnub thaum muaj hnub ci tsawg.

Common Case: 2-3 Hnub ntawm Autonomy

Txhawm rau kom ntseeg tau lub zog hluav taws xob, tshwj xeeb tshaj yog thaum lub hnub ci qis, ib qho kev pom zoo yog kom loj koj lub roj teeb cia rau 2-3 hnub ntawm kev tswj hwm tus kheej (ntau hnub lub roj teeb tuaj yeem muab lub zog yam tsis tau txais cov tswv yim los ntawm lub hnub ci vaj huam sib luag).

Kev suav cov qauv: roj teeb muaj peev xwm (kWh)

$\text{Roj teeb muaj peev xwm (kWh)}=\text{Kev siv hluav taws xob txhua hnub (kWh)}\times \text{Hnub ntawm Autonomy}$

Rau ib tsev neeg siv 30 kWh / hnub nrog 2 hnub ntawm kev tswj hwm tus kheej:

$\text{Roj Teeb Muaj Peev Xwm}=30\text{kWh/hnub}\times 2\text{hnub}=60\text{kWh}$

Pom zoo lub phiaj xwm roj teeb

Rau cov piv txwv saum toj no, lub txhab nyiaj lithium-ion roj teeb uas muaj peev xwm ntawm 60 kWh yuav raug pom zoo. Yog tias koj xaiv Tesla's Powerwall, uas muaj peev xwm ntawm 13.5 kWh ib chav tsev, koj yuav xav tau kwv yees li 5 units:

Number of Powerwalls = 60 kWh13.5 kWh/unit≈4.4 units\text{Number of Powerwalls} = \frac{60 \text{kWh}}{13.5 \text{kWh/unit}} \approx 4.4 \text{ units}Tus naj npawb ntawm Powerwalls=13.5 NwskWh/unit60kWhcov≈4.4units

Yog li, 5 Powerwalls yuav muab qhov xav tau cia.

Txiav txim siab koj lub tsev qhov yuav tsum tau muaj hwj chim siab tshaj plaws

Nws kuj tseem ceeb heev uas yuav tsum xav txog lub zog siab tshaj plaws uas koj tsev neeg tuaj yeem kos tau txhua lub sijhawm, tshwj xeeb tshaj yog thaum siv ntau lub zog siv hluav taws xob ib txhij.

Common Case: Siv cov khoom siv tib lub sijhawm

Piv txwv li, yog tias koj tab tom khiav lub tshuab cua txias (3,500 watts), lub tub yees (800 watts), thiab microwave (1,200 watts) tib lub sijhawm, koj qhov xav tau lub zog siab tshaj plaws yuav yog:

$\text{Peak zog (W)}=3500\text{IN}+800\text{IN}+1200\text{IN}=5,500\text{IN}$

Pom zoo Inverter Loj

Koj lub inverter yuav tsum muaj peev xwm tswj tau qhov siab tshaj plaws load. A 6 kW inverter yuav yog qhov kev xaiv tsim nyog nyob rau hauv rooj plaub no kom haum rau qhov xav tau siab tshaj plaws.

Kev ntsuas qhov chaw muaj rau hnub ci vaj huam sib luag

Cov kauj ruam tom ntej yog txhawm rau txheeb xyuas qhov chaw muaj rau kev txhim kho lub hnub ci vaj huam sib luag thiab txiav txim siab pes tsawg lub vaj huam sib luag koj xav tau los tsim kom muaj zog txaus.

Common Case: Roof Space Limitation

Cia peb xav tias koj lub ru tsev muaj 300 square feet ntawm qhov chaw siv tau, thiab koj npaj yuav siv cov qauv hnub ci uas tsim tau txog 350 watts txhua thiab ntsuas ib ncig ntawm 17.5 square feet.

Kev suav cov qauv: Tus lej ntawm cov vaj huam sib luag

Number of Panels=Txoj Kev Siv Hluav Taws Xob Txhua Hnub (kWh) Lub Zog Tsim Tawm Ib Lub Vaj Huam Sib Luag Ib Hnub (kWh)\text{Number of Panels} = \frac{\text{Daily Energy Consumption (kWh)}}{\text{Energy Produced per Panel per Day (kWh)}}Number of Panels=Zog tsim tawm ib lub vaj huam sib luag ib hnub (kWh)Kev siv hluav taws xob txhua hnub (kWh)cov

Txhawm rau xam lub zog tsim tawm ib lub vaj huam sib luag:

1. Xav tias 5 teev ntawm lub hnub ci siab tshaj plaws hauv ib hnub.
2. Txhua 350W vaj huam sib luag tsim$350\text{IN}\times 5\text{teev}=1.75\; ib\text{kWh/hnub}$.

Yog tias koj xav tau 30 kWh / hnub:

Number of Panels = 30 kWh1.75 kWh/panel≈17.1 panels\text{Number of Panels} = \frac{30 \text{kWh}}{1.75 \text{kWh/panel}} \approx 17.1 \text{ panels}Number of Panels=1.75 ibkWh/v30kWhcov≈17.1vaj huam sib luag

Nrog 17 panels, koj yuav npog koj cov kev xav tau ntawm lub zog, thiab qhov no yuav xav tau kwv yees li$17\times 17.5\; Nws\text{square feet}=297.5\; ib\text{square feet}$, tsuas yog hauv koj qhov chaw muaj ru tsev.

Kev txiav txim siab nqi thiab kev pom zoo zaum kawg

Common Case: Budget vs. Efficiency

Kev ntsuas tus nqi thiab kev ua haujlwm yog qhov tseem ceeb. Piv txwv li, cov vaj huam sib luag ua tau zoo dua (xws li cov los ntawm SunPower) yuav raug nqi ntau dua tab sis yuav tsum muaj qhov chaw tsawg dua. Hloov pauv, xaiv cov vaj huam sib luag pheej yig dua yuav xav tau ntau qhov chaw lossis ntau lub vaj huam sib luag kom tau raws li koj qhov kev xav tau ntawm lub zog.

Pom zoo Plan

Rau ib tsev neeg siv 30 kWh / hnub:

• Roj teeb cia: 60 kWh cia, eg, 5 Tesla Powerwalls.
• Hnub Ci Vaj Huam Sib Luag: 17 vaj huam sib luag ntawm 350W txhua qhov, xav tau txog 300 square feet ntawm qhov chaw.
• Inverter: 6 kW inverter los tswj lub zog siab tshaj plaws.
• Nqi: Kwv yees li ntawm $ 40,000 txog $ 50,000 rau kev ua tiav, nyob ntawm qhov zoo ntawm cov khoom thiab cov nqi installation.

Cov txheej txheem no yuav muab lub zog txaus rau cov tsev neeg feem ntau, kom ntseeg tau tias txawm tias lub sijhawm hnub ci qis, koj muaj lub zog txaus khaws cia.