Sma ll Sc a le E mbe dde d Ge ne ra tion T he Roa d to Approve d - - PowerPoint PPT Presentation

Sma ll Sc a le E mbe dde d Ge ne ra tion T he Roa d to Approve d Grid Conne c tion in Ca pe T

• wn

Nove mbe r 2014

Utility Se rvic e s/ E le c tric ity Se rvic e s/ BJo ne s

Cabine t de c ision- 5 Se pte mbe r 2007

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E le c tr ic ity Polic y, L e gislation, Re gulation

Go ve rnme nt po lic y

• White Pa pe r o n Re ne wa b le E

ne rg y

• Sing le Buye r- c a b ine t de c isio n
• E

le c tric ity Re g ula tio n Ac t

– Ne w Ge ne ra tio n Re g ula tio ns – I

RP (2010)

• MF

MA

– S33 – F

ruitle ss a nd Wa ste ful E xpe nditure

• Munic ipa l Supply By la ws. (I

n Ca pe T

• wn’ s c a se , no o ne ma y

c o nne c t in pa ra lle l with the g rid witho ut prio r writte n c o nse nt o f the Dire c to r o f E le c tric ity) T he re is no ma nda te a llo wing Munic ipa litie s o r E sko m to purc ha se e xc e ss g e ne ra te d e le c tric ity fro m sma ll sc a le e mb e dde d g e ne ra to rs. Role of M unics unclear

MF MA s62

MF MA s33

E le c tr ic ity Re gulation Ac t

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Grid c ode : Re sponsibility of Distributors

Grid Code : Re sponsibility of E mbe dde d Ge ne ra tors

Cur r e nt National RE Polic y and Pr

• gr

amme s

• Ca b ine t de c isio n 5 Se pte mb e r 2007 – E

sko m de sig na te d a s the “c e ntra l b uye r o f po we r fro m I PP’ s”

• Ro le o f Munic ipa litie s re g a rding RE

is unde fine d- e xc lude d fro m I PP de finitio n a nd I RP2010

• DOE

Ne w Ge ne ra tio n Ca pa c ity I PP Pro c ure me nt Pro g ra mme (L a rg e Sc a le > 5 MW)

• DOE

Ne w Ge ne ra tio n Ca pa c ity I PP Pro c ure me nt Pro g ra mme (Sma ll Sc a le 1- 5 MW ) (RF I issue d) Ma x 100 MW

• E

sko m I nte g ra te d De ma nd Ma na g e me nt (I DM) 100 kW- 1 MW “Sta nda rd Offe r” pilo t (R1.20/ kWh) Ma x 10 MW Pilo t te rmina te d.

• NE

RSA’ s “Sta nda rd Co nditio ns fo r sma ll sc a le (< 100kW) e mb e dde d g e ne ra tio n within munic ipa l b o unda rie s)

• I

RP 2010 b e ing re vise d

• NE

RSA ha s a dvise d tha t a “po lic y do c ume nt” o n SSE G will b e issue d e a rly in 2015.

Ne t Me te r ing- de finition- fr

• m “Ne r

sa Guide line s”

Ne t Me te ring re fe rs to the a b ility o f ..sma ll sc a le g e ne ra to rs to b e re wa rde d fo r the e ne rg y tha t the y pro duc e to whic h g o e s o ut o nto the munic ipa l ne two rk.……… T he fina l b ill tha t will b e re c e ive d is fo r the Ne tt q ua ntity o f e ne rg y tha t the y c o nsume ……tha t is, the ir to ta l impo rt fro m the munic ipa l ne two rk minus the ir to ta l e xpo rts o nto the munic ipa l ne two rk (sub je c t to a ny re le va nt me te ring pe rio ds in

• pe ra tio n) ( fro m Ne rsa ’ s “Sta nd a rd Co nd itio ns fo r sma ll sc a le (< 100kW) e mb e d d e d

g e ne ra tio n within munic ipa l b o und a rie s)

Sta nda r d Conditions for sma ll sc a le (< 100kW) e mbe dde d g e ne r a tion within munic ipa l bounda r ie s

• Guide line s o nly, no c o nsulta tio ns he ld.
• Ne e d c la rific a tio n a nd upda ting
• Co nne c tio n to the E

sko m g rid is o mitte d

• I

mply tha t g e ne ra to r lic e nse s a re no t re q uire d fo r ne t me te ring a pplic a tio ns

• “Sho uld” ha ve sma rt me te rs with b i dire c tio na l me te ring
• Se ts g uide line s re g a rding ne t me te ring ta riffs
• Se ts o ut re q uire me nts re g a rding re c o rd ke e ping a nd re po rting

E xtra c t from Ne rsa “Sta nda rd Conditions”- (impa c ts ta riffs a nd me te ring solution)

12

IRP2 - 2010

Na tiona l Stra te g y- Comme nts to Re vise d IRP

“A standard offer approach is developed by the Department of Energy in which an agency similar to Eskom’s Single Buyer Office purchases energy from embedded generators at a set price (with a self- correcting mechanism based on uptake) so as to render municipalities indifferent between their Eskom supply and embedded generators and thus support small scale distributed generation”

Na tiona l Stra te g y- Comme nts to Re vise d IRP

• Co mme nts to I

RP re visio n fo re se e s po te ntia l o f 30GW o f ro o fto p PV b y 2050

• I

RP- pro po sa l - SSE G to b e re ve nue ne utra l fo r munic ipa litie s

• Sug g e stio n o f sta nda rd o ffe r- ? ? 80c pe r kWh pa id b y E

sko m to g e ne ra to rs, munic s c o mpe nsa te d fo r (e stima te d? ) lo ss o f re ve nue lo ss o f re ve nue

• Me te ring so lutio n fo r the a b o ve -mo st like ly will b e a b i

dire c tio na l me te r, with “sta nda rd e stima tio n” o f PV g ro ss

• utput (o nly re q uire s o ne me te r)
• “Sta nda rd o ffe r” c o uld a lso suppo rt la rg e r g e ne ra tio n e .g . b io -

g a s to e ne rg y 500kW a s a n a lte rna tive to I PP whe e ling to E sko m a c ro ss munic ipa l ne two rk

• Administr

ative ly c halle nging

Solar Pote ntial

• Sunlig ht (po we r) fa lling o n a n a re a 6 km x 6 km e q uiva le nt to

36 GW na tio na l pe a k e ne rg y de ma nd @ no mina l 1 kW/ m 2

• PV mo dule s 15% e ffic ie nt (> 40% in la b o ra to ry)
• Co sts plumme ting
• Sun shine s o nly a t da ytime - e ne rg y sto ra g e is the “Ho ly Gra il”

M odule size 1 x 1.6 m

Re ne wable Ge ne r ation- Ne twor k Ar r ange me nts

E sko m Co a l Ba se d E le c tric ity DWF Gre e n E le c tric ity Ca pe T

• wn’ s

Distrib utio n Ne two rk E sko m’ s Ne two rks 40+ City I nta ke Sub sta tio ns E mb e dde d Generation Me te rs Me te r

E xa mple s of E mbe dde d Ge ne ra tion (is tha t PV or SWH?)

PV SWH

E xa mple s of E mbe dde d Ge ne ra tion Sma ll Wind T urbine s Ho rizo nta l a xis Wind spe e d minimum 2.5 m/ s Ve rtic a l a xis Wind spe e d minimum 1 m/ s

E le c tr ic ity Se r vic e s HQ 100 kW syste m

M odule size 1 x 1.6 m

Conte xt

F ro m the pe rspe c tive o f a Munic ipa lity with a n E le c tric ity Distrib utio n lic e nse :

• De c re a sing pric e o f RE
• I

nc re a sing pric e o f E sko m E le c tric ity a nd he nc e

• I

nc re a sing munic ipa l e le c tric ity pric e s

• Appro a c hing c o nve rg e nc e o f pric e s (I

RP2010- 2015)

• Gre e n e c o no my a g e nda - jo b c re a tio n, g re e n

a g e nda , c lima te c ha ng e mo ra l pre ro g a tive

• Pro life ra ting una utho rise d g rid tie d PV c o nne c tio ns

Public De mand

• Ma ny e nq uire s (a lmo st da ily)
• F

e w (+-10) se rio us a pplic a tio ns (pro c e ss to o c o stly/ o ne ro us fo r re side ntia l c o nsume rs)

• Also , re ve rse po we r no t ye t a llo we d- this is suppre ssing de ma nd
• Ho we ve r- c la ims o f 500+ ille g a l g rid tie d insta lla tio ns b y o ne supplie r.

No ta b le insta lla tio ns to da te :

• Bla c k Rive r Pa rkwa y

–

Pha se 1: 2875 pa ne ls, Pha se 2 : 2050 pa ne ls

–

T

• ta l 1.2 MWp- Will c o ve r 14000m 2
• Vo da c o m Building

–

542 kWp

T he Main Issue s in Gr id- Conne c ting SSE G

L e g a l ma nda te (Po lic y, L e g isla tio n, Re g ula tio n, Ge ne ra tio n lic e nc e s) T e c hnic a l Sta nda rds

• Vo lta g e , Ha rmo nic s
• I

sla nding / a uto ma tic disc o nne c tio n

• T

ype te sting Me te ring so lutio n- Re side ntia l, Co mme rc ia l a nd I ndustria l T a riffs

• Struc ture
• Qua ntum
• Rule s

Billing pro c e sse s- thro ug h pre pa yme nt, o r dire c t invo ic ing a s fo r Ra te s VAT Co nne c tio n a g re e me nt Custo me r g uide line s Othe r (no n-e le c tric ity) munic ipa l de pa rtme nta l a ppro va ls

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Cape T

• wn E

le c tr ic ity By- L aw

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City of Ca pe T

• wn’s

Pha se d Approa c h

• F

irst - 4 limite d sc o pe pilo ts:

• 1. 1x Co mme rc ia l no re ve rse po we r flo w
• 2. 3 x Re side ntia l pilo ts with re ve rse po we r flo w
• T

he n a llo we d g rid c o nne c tio n witho ut a ny insta nta ne o us re ve rse po we r flo w

• F

ina lly a llo we d g rid c o nne c tio n with insta nta ne o us po we r flo w- c o nsume r o ve r a n a ve ra g e d pe rio d must b e a “ne t c o nsume r” a nd no t a “ne t g e ne ra to r.”

T e c hnic al Spe c ific ations

• L
• w vo lta g e : NRS 097-2-1 (2010 ve rsio n)
• Me dium vo lta g e : E

sko m spe c ific a tio n E sko m 240-61268576 / DST 34- 1765: (will b e supe rse de d b y NRS 097-1 whe n fina lise d)

• Grid c o de fo r re ne wa b le e le c tric ity

(g rid c o de will o ve rride o the r spe c ific a tio ns whe re the re a re c la she s)

• NRS 097-2-3 (fo r simplifie d utility c o nne c tio n c rite ria )

Outsta nding :

• NRS 097-2-1 (2014 re visio n)
• NRS 097-2-2 (2014 e ditio n in pa rtic ula r type -te sting re q uire me nts)

In the inte rim inve rte rs must be type - te ste d by a n a c c re dite d te st house .

• NRS 097-2-4 (imple me nta tio n pro c e dure s a nd a pplic a tio n – future

de ve lo pme nt) Co nsume rs c o nne c ting no w will ne e d to pro ve c o mplia nc e with ne w sta nda rds a s the y e me rg e .

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T e c hnic al Spe c ific ations c ont’d

SANS 10142-1

• Co mpulso ry spe c ific a tio n SANS 10142-1 do e s no t c o ve r dc

c irc uits b ut do e s c o ve r c o nne c tio n o f g e ne ra to rs to the g rid.

• SANS 10142-3 is b e ing dra fte d a nd will c o ve r the dc

re q uire me nts. I n the inte rim the City will re q uire a pro fe ssio na l e ng ine e r a nd a COC sig n-o ff o f a ll SSE G’ s.

T e c hnic al Re quir e me nts c ont’d

• Spe c ia list g rid impa c t studie s
• I

nve rte r type te sting re q uire me nts – no T

e st House in RSA at pr e se nt

• E

le c tric ity de sig n a nd insta lla tio n c e rtifie d b y a pro fe ssio na l e ng ine e r.

• On-site c o mmissio ning a nd ha ndo ve r
• Ce rtific a te o f Co mplia nc e
• Sta tus- in pro g re ss – Multi-pa rty wo rkg ro up- E

sko m, Munic s, I ndustry

• Ca pe T
• wn- inte rim sta nda rds a nd re q uire me nts- a t de ve lo pe r’ s risk.

Co mme nts sub mitte d to Ne rsa / DOE re g a rding 100kVA sta nda rd g uide line s, - re c o mme nde d inte r a lia no lic e nc e re q uire d up to 1 MVA.

T ype T e sting- inve r te r s

Comme nt fr

• m E

skom Gr id T ie spe c ialist:

“T his is a se nsitive sub je c t fo r whic h the e le c tric ity supplie rs do no t have a simple answe r in my vie w. We as utilitie s do no t c arry the so le re spo nsib ility to re so lve the se issue s e ithe r. T he se are matte rs whe re the SA industry, SA g o ve rnme nt and its o rg ans suc h as SABS, DT I and o the rs may we ll ne e d to take hands to assist lo c al supplie rs.”

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Me te r ing Solution- c onside r ations

Comme rc ia l a nd Industria l- 4 q ua dra nt AMI

me te rs

Re side ntia l

• E

le c tro -me c ha nic a l me te rs “turning b a c kwa rd” a re no t a c c e pta b le -

–

the y a re no t c e rtifie d to b e a c c ura te turning b a c kwa rds,

–

T he y a lso do no t pro vide da ta o n fo rwa rd a nd re ve rse po we r flo w.

• City po lic y is to mo ve to pre pa yme nt me te rs

–

Pre pa yme nt me te rs de c re me nt o n b o th fo rwa rd o r re ve rse po we r flo w (a sma ll pe rc e nta g e trip a nd lo c k o ut o n re ve rse po we r flo w)

• Use e xisting b illing a nd ve nding syste ms a s fa r a s po ssib le .
• Sa me so lutio n re q uire d fo r sing le a nd thre e pha se c usto me rs
• Billing MUST

b e a uto ma te d

• So lutio n must b e “unde rsta nda b le ”- e .g . po te ntia l c o nfusio n with re c o ve ry o f

da ily se rvic e c ha rg e thro ug h the Pre pa yme nt syste m (c lo g up the c a ll c e nte rs)

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Me te r ing Solution- Re side ntial

• T

he City sta rte d wo rking with supplie rs to de ve lo p a pre pa yme nt me te r with a re ve rse po we r flo w c re dit re g iste r whic h c o uld b e re mo te ly re a d

• T

he inte ntio n wa s to b ill da ily se rvic e c ha rg e a nd e xc e ss g e ne ra tio n re fund dire c tly a s do ne fo r ra te s a c c o unt

• Supplie rs we re o nly pre pa re d to de ve lo p a sing le pha se unit- wa nte d

g ua ra nte e d purc ha se vo lume s if 3 pha se unit de ve lo pe d.

• Also the c ha lle ng e o f pre pa yme nt me te rs de c re me nting o n re ve rse po we r

flo w (whic h is a “re ve nue pro te c tio n” fe a ture .)

• Pro b le m o f linking me te ring de vic e to b e lo a de d o n b o th SAP b a se d c re dit

me te r b illing syste m with Pre pa yme nt ST S c o upo n ve nding syste m.

In the e nd de c ide d to use the sa me AMI me te r a s use d for Comme rc ia l a nd Industria l a pplic a tions.

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Re side ntia l Sma rt Me te ring Solution – “still a bit down the roa d”

• Sma rt me te r whic h c a n o pe ra te in pre pa id a nd po st pa id

mo de s

• Ca n a c c o mmo da te T

ime o f use ta riffs?

• L
• c a l ke yb o a rd fo r c o upo n lo a ding o f units if c o mmunic a tio n

line is do wn.

• Re side ntia l lo a d c o ntro l- c ha lle ng e o f re spo nse time s/ da ta

vo lume s

• Ma in b a rrie rs-

– o pe n c o mmunic a tio n pro to c o l to pre ve nt o ne supplie r

g e tting a mo no po ly,

– c o st o f re pla c ing a ll me te rs a nd insta lling a c o mmunic a tio n

infra struc ture

– se c urity (ha c k fre e )

T ar iffs for SSE G

• T

a riffs to b e a ppro ve d a nnua lly b y Munic ipa l c o unc ils a nd NE RSA

• I

n the o ry c o nsume rs c a n e nd up with no ne t c o nsumptio n a t the e nd

• f e a c h mo nth
• T

he re is a c o st to pro vide , ma inta in a nd a dministe r the e le c tric a l ne two rk

• NE

RSA < 100kW g uide line s re q uire mo nthly fixe d se rvic e c ha rg e to c o ve r ne two rk a nd a dmin c ha rg e s, a nd a n e ne rg y c ha rg e fo r c o nsumptio n a nd 1 fo r 1 unit e xc ha ng e .

• T

he City initia lly e sta b lishe d “o ne fo r o ne ” ne t me te ring ta riffs with a da ily se rvic e c ha rg e .

• (T

he de vil is in the de ta il)- pra c tic a l imple me nta tio n o f the ta riff wa s to o pro b le ma tic -

–

Busine ss pro c e sse s fo r a c c o unting fo r “ne t” units a nd b a nking e xc e ss (ne t g e ne ra tio n) units- “sto c k c o ntro l”

–

I ssue o f a rb itra g e - ro lling e xc e ss units into a ne w fina nc ia l ye a r (ne w hig he r ta riff)

2014/ 2015 SSE G ta riffs a pprove d, not ye t imple me nte d (inc va t)

Re side ntia l

• Da ily se rvic e c ha rg e (R13.03pe r da y )
• E

ne rg y c o nsumptio n c ha rg e (109.17c pe r kWh) (no rma l ta riff is 153.63/ 186.81c pe r kWh)

• E

ne rg y g e ne ra tio n purc ha se ta riff (49.72c pe r kWh) (E

X VAT )

Co mme rc ia l

• Must b e o n a ta riff with a da ily se rvic e c ha rg e
• T

a riff is the sa me a s the pure c o nsumptio n ta riff, with E ne rg y Ge ne ra tio n purc ha se ta riff a s fo r Re side ntia l c o nsume rs (56.68c pe r kWh) A b ig a dva nta g e o f se tting the e xc e ss g e ne ra tio n ta riff lo we r tha n the e ne rg y purc ha se ta riff is the inc e ntive to shift lo a d o ut o f the e ve ning pe a k to da ytime whe n PV g e ne ra tio n o c c urs.

T ypic al Ge ne r ation and Consumption Pr

• file s

Ge ne ra tio n: fro m 2 kW (pe a k) DC a rra y Co nsumptio n: a ve ra g e

• f 25 ho use ho lds whic h

use 748kW pe r mo nth

T ime of Use ta riff Pe riods- Me g a fle x ta riff (>66kV& <132kV)

Summe r Winte r 82.64 253.35

56.87 76.74

36.08 41.68 c / kWh inc VAT

Re ve rse po we r flo w

What the City will allow

• C&I

: Grid Co nne c tio n with L

I MI T E D* re ve rse po we r flo w, must b e o n SSE G ta riff (whic h inc lude s a da ily se rvic e c ha rg e )

• Re side ntia l:

– Grid Co nne c tio n with NO re ve rse po we r flo w (b lo c king

re la y insta lle d)- no ta riff o r me te r c ha ng e re q uire d . E xpe c t tha t da ily se rvic e c ha rg e s will b e re intro duc e d a c ro ss the c o untry fo r no n indig e nt re side ntia l c o nsume rs in the future .

– OR o n SSE

G ta riff with L I MI T E D * re ve rse po we r flo w(must b e b o na fide g e ne ra to r)- a t City’ s disc re tio n. *L imite d a t a pplic a tio n a ppro va l sta g e to b e ing “ne t c o nsume rs”

• ve r a ye a r’ s a ve ra g ing pe rio d

Ge ne r ation size limitations

Re side ntial

(no g rid studie s re q uire d ito NRS 097-2-3)

Comme r c ial & Industr ial

All L V g rid c o nne c te d a s pe r NRS097-2-3 (< 1 MVA) All MV c o nne c te d (< 1 MVA)

• will de pe nd o n g rid c a pa c ity,

c o nsume r lo a d & g e ne ra tio n size in g rid c o nte xt- spe c ia l g rid studie s ma y b e re q uire d > 1 MVA MUST ha ve NE RSA g e ne ra tio n lic e nc e , c o nne c tio n te rms to b e se pa ra te ly de te rmine d- c a nno t pa rtic ipa te in SSE G ta riff sc he me .

1 2 3 4

Number of Phases Service Circuit Breaker Size (A) Notified Maximum Demand (kVA) Maximum Individual Generation Capacity (kVA) 1 40 9.2 2.3 1 60 13.9 3.5 1 80 18.5 4.6 3 40 27.7 6.9 3 60 41.6 10.4 3 80 55.4 13.9 3 100 69.3 17.3

Billing

• Ac c o unts to b e re nde re d mo nthly fo r c usto me rs o n the SSE

G ta riff.

• VAT
• Co nsume rs do no t ha ve to issue the City a VAT

invo ic e fo r pa yme nt fo r e xc e ss g e ne ra tio n.

• Va t o n pa yme nts fo r e xc e ss g e ne ra tio n o nly pa ya b le to

re g iste re d VAT ve ndo rs (e xc lude s re side ntia l c usto me rs)

• Any c re dit b a la nc e will b e c a rrie d fo rwa rd a nd no t pa id o ut

Ge ne r ation lic e nc e s

• E

le c tric ity Re g ula tio n Ac t re q uire s a ll g e ne ra to rs to ha ve a g e ne ra tio n lic e nc e fro m NE RSA unle ss g e ne ra tio n is “fo r o wn use .”

• “Own use ” no t de fine d: I

f so me o ne e xpo rts a t time s o nto the g rid, b ut the ir ne t po we r flo w is c o nsumptive - a re the y g e ne ra ting “fo r

• wn use ”?
• NE

RSA Guide line s fo r g e ne ra tio n le ss tha n 100kW imply tha t a lic e nc e is no t re q uire d. Ho we ve r the y a re ONL Y GUI DE L I NE

• S. T

he y c a nno t

• ve rride the Ac t
• T

he City will a llo w g rid c o nne c tio n up to 1 MW witho ut e vide nc e o f a g e ne ra tio n lic e nc e .

• >1 MW: City will de ma nd a g e ne ra tio n lic e nc e b e fo re pro c e ssing

a pplic a tio n

• T

he City will re po rt a ll e mb e dde d g e ne ra tio n to NE RSA.

• Co nsume r is re spo nsib le to NE

RSA- a nd ta ke s risk if NE RSA re q uire s, a nd the n re fuse s, to issue g e ne ra tio n lic e nc e

Busine ss Pr

• c e sse s

Busine ss Pro c e sse s b e ing imple me nte d to :

• I

nte g ra te with o the r supply a pplic a tio ns pro c e sse s

• I

nitia te Grid c a pa c ity studie s whe n re q uire d

• T

ra c k a nd re c o rd de sig n, te sting a nd ha ndo ve r a ppro va ls a nd Supply Ag re e me nts

• Ha ndle re a ding dua l me te r re g iste rs a nd ma na g e

b illing

• Pro vide da ta fo r NE

RSA re po rting e tc .

• Pro vide c o nsume r a dvic e

Applic a tion a nd Ac c e pta nc e Proc e ss

Applic a tio n

• Co nsume r g uide line s po ste d o n the City’ s we b
• Co nsume r must c o mple te a nd sub mit a n a pplic a tio n fo rm
• Co nsume r must sig n a spe c ia l supply c o nne c tio n c o ntra c t
• Grid studie s ma y b e re q uire d fo r C&I

a pplic a tio ns

• Custo me r pa ys fo r a ll re la te d c o sts (ne two rk studie s, me te ring a nd

ne two rk c ha ng e s, te sts ...)

• No g rid a ppro va l witho ut prio r a ppro va l o f insta lla tio n b y o the r City

de pa rtme nts

• No g rid c o nne c tio n a llo we d until le tte r g iving c o nse nt to c o nne c t is

issue d. Ac c e pta nc e

• I

nsta lla tio n c o mplia nc e with a ll re q uire me nts to b e sig ne d o ff b y a pro fe ssio na l e ng ine e r/ te c hno lo g ist

• Ce rtific a te o f Co mplia nc e re q uire d
• I

nve rte rs se t in a c c o rda nc e with NRS 097-2-1

We bsite whe r e SSE G Guide line s poste d

• http:/ / www.c a pe to wn.g o v.za / e n/ e le c tric ity/ Pa g e s/ Se rvic e Applic a tio nF
• rms.

a spx

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Othe r Munic ipal Re quir e me nts

Appro va l o f g e ne ra to rs re q uire d fro m o the r Munic ipa l De pa rtme nts:

• No ise (wind turb ine s, g e ne ra to r e xha usts)
• Othe r inte rfe re nc e (flic ke ring sha do ws fro m wind turb ine s)
• Air po llutio n (b io ma ss g e ne ra tio n/ inc ine ra tio n, e xha ust g a se s)
• Wa ste ma na g e me nt
• Building re g ula tio ns (e .g . sma ll wind turb ine s, PV pa ne ls)

(inc luding sig n o ff o f struc tura l de sig n)

• Se rvitude s fo r po we r line s a nd c a b le s

Ne ma (E I A), Wa te r,

Ge ne r al Conside r ations

Whe e ling

• Administra tive ly b urde nso me
• Mo nthly a djustme nt o f two me te r re a ding s- c o nsume r’ s a nd a t inta ke sub
• Multiple a g re e me nts to b e ne g o tia te d (6 o r mo re )
• F

a r e a sie r fo r munic s to purc ha se dire c tly a nd e ithe r re c o ve r the c o st fro m the Ce ntra l Buye r’ s Offic e o r fro m E sko m, o r thro ug h the ir o wn ta riff.

• Ne rsa ha ve intro duc e s rule s fo r c o st re c o ve ry fo r whe e ling - the y a re to b e

re vise d.

• E

sko m a llo w whe e ling a t MV o r hig he r

• Ca pe T
• wn is sta rting to “wo rk o n the sa me ”.

Contribution T

• wa rds Syste m L
• a d

a nd E le c tric ity Sa le s Inc ome

• Ca pe T
• wn ha s a b o ut 550 000 re side ntia l c o nsume rs (250 000

middle / uppe r inc o me (no n-life line )) a nd a ye a rly o ve ra ll c o nsumptio n o f 11 T e ra wa tt ho urs (11 000 000 kWh)

• Assume 100 000 3kWp units insta lle d (350 kWh a ve pe r

mo nth/ unit)

• 100 000 units will g e ne ra te 0.42 T

Wh pe r ye a r o r a b o ut 3.8% o f Ca pe T

• wn’ s c o nsumptio n
• I

mpa c t o n e le c tric ity sa le s inc o me will b e hig he r.

• A ne t me te re d 3kWpk PV pa ne l to g e the r with a 200l SWH will

pro vide a b o ut 550 kWh/ mo nth- mo st o f the e le c tric ity ne e ds

• f a middle inc o me ho use ho ld!
• PV g e ne ra tio n ma ke s little o r no c o ntrib utio n to wa rds re duc ing

the e ve ning pe a k unle ss a c c o mpa nie d with lo a d shifting to

• utside pe a k pe rio ds

Communic ation fr

• m E

the kwini

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E T he kwini's sma ll sc a le e mb e dde d g e ne ra tio n ta riff (pa g e 6 o f ta riff b o o kle t) to b e imple me nte d a s o f 01 July 2014 ha s no t b e e n a ppro ve d b y the re g ula to r. T he fo llo wing wa s the re spo nse b y the NE RSA:

• "Ple ase no te that we are c urre ntly e ng ag ing inte rnally to de ve lo p the

e mb e dde d g e ne ratio n frame wo rk. I do unde rstand the pre ssure fo rm yo ur side , b ut it is so me thing that o ne c anno t take to the Re g ulato r witho ut the e stab lishe d frame wo rk. Onc e the frame wo rk is appro ve d it will he lp to de al with the applic atio n o f this nature ." Sub se q ue nt to this, a le tte r wa s dra fte d to the re g ula to r (a tta c he d ) to a ppro ve the ta riff in the inte rim until a fra me wo rk is imple me nte d. We a re a wa iting a re spo nse in this re g a rd.

• We ne e d a nswe rs a s the pre ssure fro m c usto me rs a re mo unting . We sho uld

pla c e a little pre ssure to g e t a re spo nse to the pro po sa l a s sub mitte d to the Re g ula to r. Artic le s like the se c re a te a n e xpe c ta tio n o ut the re a nd it b e c o me s diffic ult to de a l with c usto me rs in the a b se nc e o f re g ula to ry g uide line s !!

T hank You

F

• r

que r ie s c ontac t gr e e n.e le c tr ic ity@c ape town.gov.za