The Philippine National Energy Accounts: A Methodological Note by Ronald Yacat

PhilippineIrkstituZe for DevelopmentStudies 1fforking Paper 81-04 THE PHILIPPINE NATIONALENERGYACCa_rfS'_ A MHIHODOLOGICAL NOTE by LEA_ER J. ALKIO

August 1981 PhilippineInstitutefor DevelopmentStudies

The views expressed in this do not necessarily reflect those

study are those o_ the Institute.

of' the author

and

_IE PHILIPPINE

NATIONAL

This note presents construction 1970-79.

National

additional

reference,

The underlying

C = consumption P = production

involved will be

used in the construction

revolves around the following

Ci =

Pi + (Mi - Xi - El) - _ !i

of the

where

of energy_ in I0 I0 kiloealories of energy,

in i0I0 kiloc,_lories

i_ I0 I0 kilocalories

X = export of energy,

in i0I0 kilocalories

sales, in I0I0 kilocalories

A I = change-in inventory i = energy product

Consumption â&#x20AC;˘ sectors, namely_ refinaries_

for

identity_

M = impo,rt of energy,

B = bunker

(PNEA)_

details are attached in the appendix

framework

NOTE

used in the

Energy Accounts

The data used and the assumptions Procedural

A KETHODOLOGICAL

a s_m_Lary of the methodology

of the Philippine

outlined.

accounts

ENERGY ACCOUNTS:

of energy_ in i0I0 kiloealories

(Ci) is disaggregated-across (I) electrical

two transformation

utilities and (2) petroleum

and two major consumimg

sectors;

(1) the industrial

seotor

-2-

consisting of seven subsectors_

'viz_.,agriculture,

minin_

and

quarryinz, n_nufa(:turing, cons truction_ transportation., communication a_'_d:_torage_ eo_._erce, and services_ and (2) the household sector. between

On the other hand, energy production electrical utiliEies

trade section bunkers,

and petroleum

(Pi) is divided

refineries.

The net

in the table consists of imports less exports

and

Actual data have been 1_sed to derive _-hese estimates

and invent'ory _han_e was computed as a residual due to data difficulties,

(For the succeeding

the Exhibits ci=ed in Working

discussion,

please refer to

Paper Nee I) o

Consumption On the national

].evel_ consumption

fom_s can he estimated of the equa.tion_

from the.variables

The equivalent

of energy expressed

of energy in its various on the ri!_'h.t 'hand side

energy cor_te1._.t of various

in kiloca!ories

forms

or in i, arrels of fuel oil

equivalent may be, employed to co_,c'up with a _inzle _easure

the, total a_:iountof energy consumed within

For

Philippine

a p:iven period.

energy data, howeger_ we ',havedÂŁeided to i._easu_e

enerBy consumption from the _,Z

directIF

from the.', demand side rather

side as defined by the identity.

use of data on energy

than

,We have made

sales fizures allocated accordingly

time and .across sectors o1

IThe only exception from the supply side.

over

It is assumed that the quantity of

is coal whose consumption

is estimated

- 3-

energy sold in one period

is an indication of consumption

in the

same period,

Crude Petroleum Consumption

of crude petroleum

derived from refinery production naptha, blenders

(PNEA Item I. A) was

r_acords째 These fi.gures exclude

and OthEr feed processes.,

Semestral data were

available from 1973 t<, 1979 from the Board of Energy the Bureau of Energy Uti!i_ation data were derived by applying produc_s consumption

(BEU) o

For 19"70 to 1972 semestral

first and -_econd _emester sh,are_ of refined

to annual crude petroleum consumption.

estimates in thousa_'_dbarrels were converted 2.

REfined Petroleum Direct

consumer_

Philippine National

(PNOC) were used to estii_tt_

of refined products for the period under I.I to Io5),, We have. excluded

as bunkers째

trade was similarly

table.

.The U.So military base

deleted since it was no_ possible

the data across sectors.

These entered instead into the net

trade column of the energy accounts

sectors.

the

trade data (-.-_s defined by PNOC) from consumption

these were _';rc:ated

consumption

to I019 kiloealories_

reseller and governs:eat tr_:de data from

(Please See Exhibit

internation_l

All

Products

Oil Company

aggregate consumption study,

(BOE) and

We impose the restriction

to allocate

that the total

of energy per period equals consump_'ion of energy across

Also by definition_

U,S. bases were considered outside

the scope of 'Philippine economy.

The deletion however does not

-4-

constitute a sigaifieant

unders_-atement since these bases account

for less than i% of total energ7 consumption° Semestral

construe.pilot data for each of the above consumer

trades are available

from I!_,73to 1979.

semestral PNOC data were available,

For 1970 to 1972 where

the.first semester share of

each product per type of ¢_onsumer was tsken from Petroleum Institute of the Philippines PNOC data.

(PIP) data

and, applied on annual

We ,chose to use relative shares rather

PIP data in reconstructing the inconsistencies

semestral

consumption

than actual

estimates

in the figures reported by both°

due to

Second

semester figures were computed as residuals. Refined products

cons_m_ption estir_tes

sector required further adjustments

in data_

involves :lerivin_ _'_.erc_nta,_e _ o ,. consumption for each type

of consumer

for each se_:aesterby The _nethodology

shares across sectors

trade from PIP and PNOC data and

applying the same on one set of consumption

data (PNOC direct

consumer, reseller and government- trade data) to ensure For the following

discussion please

We chose to divide agriculture_

the economy

manufacturing,

aonstruction_

commerce and services°

following energy petroleum these sectors;

refer _,._ Exhibits 2 and 3o in=o nine sectors: transportation,

utilities,

The consumption

products w:_s estimated

household,

of the

for each of

avturbo and avgas_ LPG, motor _:asoline (premi_n

and regular)_ kerosene, fuel oil.

mining,

consistency°

diesel

The percen=age

(automotive

and industrial)

shares of the agricu!ture_

and

manufacturing,

-5-

mining,

transportation,

utiiities_

from

the

1970-73

PIP

semestral

same

was

done

the

government

utilities

and

data

others

classified

reclassified

given

PIP

the

obtained° consumption weighted 1975

data first

data

were

Several allocations between

was

not

applied

PNOC

and

data

was

s,ectoral

_¢;_re also

for

annual

PNOC

for

the

not

Thus

!973

and

figures_ sectora!

_-as not

divided

consu',_er trade

average

to allocate

industrial

include

gasoline

direct

A weighted

used

average

did

consumer

breakdown

basis.

1974

The

were

on a semestral

arid motor

both

direct

'Howe,ver_ i_974 PNOC

t.he PI?

avgas_

1970-73_

the

trade.

22 industries

percentage

to the

regul_r

fur

the

semester

arose

avturbo

available

instead

The

taken

transportation_

1974-,-79_ PNOC

used,

and

.sectors. ware

:!ate fez

For

to Table

second

pre_iu_z: and

1975-78

1970-73

probblens of

3),

roughly

refer

and

govern_.uent trade from

for

others

on dire<:t consuner

trade

was

correspond

(Please

data

(Ex/_ibit industry

nnd

these

percent products

and

taken

across

sectors°

For down the

ti%e government avturbo_

mvgas_

transportation_

percentage

trade_ premiuln

utilities of

both

these

and

sectors

data

sets

regular

others

did net

_asoline

sectors°

:from the

direct

show

any

break-

consumption l#e then consumer

_ook data

_mong the and

¢._

..I.3

u_ .In _-_ 0 _A

_0 0J

_,,J to

JA tO

C, o

.t._ .rl &i 0

,,.-t

0,1

¢I

"t'l

_-_

I.M 0 0 •el "r4

•

._I

4J U

-7-

adjusted the toual_ to correspond _ith the data for government For the sectoral breakdo_n data_ a weighted

trade.

of the 1974-7!) PNOC govern_.le'nt trade

average percent

sha=e was _sed based on the PIP

government trade data for 1970_..73o For the household was used,

Following

sector, r_=_elier trade data from ?NOC for 1970--'79 o the methodology employed by Go_zaio_ _ the percentage

share of LPG and kerosene was netted was allocated

to private

household consumption

out and the rest of the products

transportation

(30%) which was part of

and public transportation

part of _h,econsumption

of the transportation

Th_ "others" sector w_s disaggregated commerce and services

transactions

seotor_.

into construction_

by their r_zlative shares

derived and interpolated

(70%) which formad

(in percent) as

from the 1'969 and 1974 input,,,_output

tables (at producers '_prices)_. The_]e shares

are

show-n in Table 2o

2See "Petroleum Consumption in the Philippines_ A Macroeconomie Analysis_" DAP Paper Series Noo 77-!]._ PREPF Workshop on Natural Resources_ Environment and the Philippine Future_ 1977,

-8-

Table 2 Three,,,sectorCo_s_mlptien Sh_re of Petro!.eu_L_efineries v Output and Petroleum F_'oduct_ (in percent)

NEAil

CONSTRUCT ION

CO_'_RCE

$E'RVICE$

1969

23,06

15_92

61,02

1970

20,68

!7o67

61o45

1971

18,70

I:_41

61o89

1972

16o51

21o 16

62.33

1973

14.33

22째90

62,76

1974""7_J

12째 i5

24 ,,65

63,20

Source of basic data:.: i!;___(_it,.7.{;ut__...Tabies of the Philip_ine_ !974 In_er_-Industry.(in_ut-Out6_t)

.Ac_:oun_s

el the P'hili_3pines }]o_e: Due _o rounding off_ figures

dR not total 100%o

After havinN obtaine,i the percentage semes_rai and annual consum!?tion share of each sea_tot per product trade_ these uere applied

from each consumer

to the i!970._79annual and first semester

PNOC reseller_ direc_ consumer and government semester e_timates were computed

trade da_ao

as a residual of annual and

Second

-- 9 --

first

semester

vetted

breakdown are

d_tao

All

astir%ares

i0 I0 kiloeaieries_, for

each

presented

Table

these

in PNEA

Item

in thousand 3 s,m_arizes

consumer II.A

barrels

trades,

under

the

The

the hea_ing

were

¢^n_

sectoral

final

results

:'Consuming

Sectors :_o

Table Seetoral

Direct

Consumer

Classification

Trade

Cons_mner

Government

'I'r_de

Trade

Reseller

Trade

tat ion

Agriculture

Tr anspor t_.tion

Transpor

Minin_

Utilities

Household

_anufac

turing

Others

Transportatioi_. Utilities Others

Coal Coal

of imports

and

co nsumptio_ domestic

that separate

consumption

data

Bureau

from

Sectoral The

first

the coal step

in PNEA

production° figures

of Mines

consumption entails

figures

was

It was were

equated estimated

identifying

made

Item

I_C

only

the major

the

in recent

available°

consumption in

are

with

following

consuming

sum years

Past produetion_ manner. entities

- I0-

and classifying ificationo

them accordi'n_ to the standard

For instance,

sectoral class.-.

the Visayan Electric

Company was class_-

ifie_ under the _째utilities_ sector_ the APO Cement Company

under

"manufacturing _ and so forth.

There were only _bout four to five

companies listed in the Bureau

of i'._ines and the BEU's coal con-

sumption sutm_..aries and these belonged and utilities

sectors,.

to the manufacturing,

The next step involves derivinB

relative shares over total consumption.

_ining

the sectors _

For 1974 to 1979_ semestral

shares were derived but for 1970 to 1973 whole year shares were computed,, Las_ly_ data to determine in metric

these were applied sectoral

to import and production

consumption_

tons and converted

All data were expressed

to I0 I0 kilocalorieSo

Electricity Eiectrieity

sector (industrial,

comsumption

utilities,

iu millio:_ kilowatt-hours

residentisl_

commercial

and others)

for calendar years 1970 to the first sequester of 1979 was taken from the NEDA Philippine 8,12 - Electric Energy

Statistical

Production

same monthly

and sectoral

derive consistent

1979 (revised table

and Consumption

1960 to July 1979) which had monthly The 1972-1976 NEDA Pl_lippine

Yearbook

breakdowns

Economic

by Se_tor CY

s_arting

Indicators also had the

form but had different figures.

semestral

1977.

data_ first s_nester shares of the

Indi=ators data were applied to th_ ,earbook s annual consumption째 For 1970 and i97!_ first semester factors computed asweighted

- 1i -

averages

of the 1972-74 first sea, ester consumption

to s_nual data from the.Ye:Jrbook_' Th_ consumption the second s_.mester of ].979were Philippine Economic

to correspond

with the use of electricity

from the 1969 and 1974 input-output

(Table 4), These sectorai shares were applied

tion and the second

under PNEA Item II.B of the Consumin_

consumption

classifica-

semester data were computed as residuals.

The final, results were converte-d to ki!ocalories

electricity

petroleu_n refineries â&#x20AC;˘

tables

to the first semester

and yearly co'nsumption figures based on their original

Actual

for

taken from the June 1980 NEDA

of sectors was expanded

with our standard classification sbares

figures

IndicatorsÂ°

The classification

consumption

wereappli:_-d

and are found

Sector:._o

consumption

data were used

for .the

subsector and subtracted from the derived

of the manufacturing

industrial

subsectoro

Annual

data were av;_il_b!e fro_l the NEDA i:hilip_ine S_.atistical Yearbook (1970--71), the NC$O Annual

Survey of Establishments

(1973-74) and the NCSO Economic Census

for Manufacturing

(1972 and 19'75). Semestral

es=inmtes _ere derived by taking first and second s_.=mestershares based on the refineries = production year,

This was used as an

of petrolet_ products

a_t_.v._.tyvariable

for each

that vari_as direet!y

with the cons'm_Iptionof ener&y inputs_, .For 1976 to 1979_ data of which were _nevail_ble, electricity

the average ratio of the quantity of

consumed and prod-orion of refined products _;as

computed from 1970 to 1975.

This was applied

to production

data

0 0

t,"_ 0

0 0

0 G

0 0

- 12 -

0 .'_

¢D

0 0

CD 0 '

d ¢'-,i

C'-I

d _

o _'xl

I'_

O) (lJ

,I-I

,I-I ;::1 ex

O_ I_ 0

,..__

_-_

,-4

_'_

e'_

_ _

("4 t-_

_')

0 4-1 o _'._

1,i-i

._. _- o

C-.I

o"1 0 i_,

0 ,rot

P_ !

13-

(in I0I0 kilocalories)

in order to approximate

sumptiono

of electricity

Comsumption

defined as the sun of internally purchased

electricity

by petroleum

refineries

generated power plus power

from the the grid less electric energy soldo

be noted however

con-

It must

that the figures for 1976 to 1979 _re preliminar7_ /

estimates and are somewhat

understated.

From our survey

two

refineries,

total electricity

consumption

half of 1979 was 4째08 x i0 I0 kiloea!ories. includes a third refinery, Ther_ is no corr_etion consumption

is placed

for the first

Our estimate_ which

at 5.79 x i0I0 kil, ocalories.

though for electric

may stil! be significantly

energy sold and actual

less than 4째08 x i0I0

kilocalories. [_ydro-.geothermal eleztricity by computing the percent production

National Power Corporation

Egonomic Indicators

generated from all sources

(NPC) data and applying

II.

from

them to the

produced based on the NEDA Philippine

and Philippine

Statistical

Production was ,equated to consumption kilowatt-hours

was estimated

share of hydro-,geotherma! electricity

_o total, electricity

quantity of electricity

consumption

were converted

Yearbook

and all estimates

data. in million

to I0I0 ki!oeaiorie.s.

Production All production

accounts as negative formation seatorso

date are presented

in the table of energy

figures and are found solely under the trans_e

production

of petroleum

refineries was

14-

obtained from the Board of Energy

(BOE) and the BEU,

production- data were unavaiiabl,_

annual figures were derived

according

to first and second seme_ter shares of refined products

consumption

for each year.

Total generation of electrical consumption

of the industrial

losses by electric,_l utilities column i of the PNKAo the same manner

sectors plus the con-

O%n_ consumption

and transmission

are implicit in the last figure for

Refinery

under column

energy is the sum of the

and household

suL_ption of petroleu_,1refineries,

energy minus the correspondin_

fuel and loss is accounted All inputs of primary output of secondary

for distribution

equals the own consumption

formation sector

inclusive of conversion losses.

II!o

When s¢_lestral

for in

and secondary

energy available

of energy ,by the trans-

Trade Statistics on total energy imports and exports were taken

from the Central Bank Office

(NCSO)°

(CB) and the National

Only th_._series

Census and Sta¢istics

published by the NCSO was used°

No major ad.just_ents were made or_the data ¢.ollected and they wer_ simply converted gives the various

IV.

to corresponding

energy units_

Table 5

factors used°

inventory Changes Actual

the PNOC.

inventory

data are. available

We elected however

from the BEU and

not to use tha data as all attempts

- 15 -

to link t, hem 'with the con_gumption identity failed_, Thus inventory ch_Lnge w_._scomputed as a re_,_idualo

- 17 -

P_JFERENCES

Fall_n-Bailey_ DoGo and T_A_ Byer, _Energy Options and Policy Issues in Developing Countries_ _'World Bank Staff Working Paper No. 350_ August 1979.

Hughar=_ Do, _'Prospects for Traditional and Non-conventional Energy Sources in Developing Countries," World Bank Working Paper NOo B46_ July 1979o

Reisman_ Ao, and R. Malone, _'Less Developed Countries Energy System Network Simulator LD$_-ESNS_ A Brief Description_ _ Brookhaven National Laboratory_ Upton, New York, April 197_o

Republic of the Phi!ippines_ Ministry of Energy째 Energy Utilization Quarterly Review.

Sevian, WoA. "The Energy System Network Simulator (ESNS): General Description and Sample Analysis_ '_Brookhaven National Laboratory_ September 1975o

United Nations,

World Energy

Supj_lies_ geries Jo

Bureau of

APPENDIX. A The Philippine National

Energy A_,:counts: Detailed Methodology

in Network Dial,rains

- 19 -

GUIDE TO NEI_ORK

The following methodology

figures present

used in deriving

with particular' emphasis su_%_arizing activities each energy product. ascending order.

a step-by-step

detail of the

the esti_lates of the energy accoun_.s_

on consumption.

Y%e ,.liaglrams are networks

(dependent and independent)

undertaken

are represented

5y lines connecting

Activities which may 'be performed

are denoted _Jy lines ori_ina_in;_ from a co__mon node.

simultaneously A path

consists of a set of activities which must be performed Lines preaeding

one another represent pre-raquisite

activities are independent paths.

_'oruhe following

cited in Working

for

Nodes are numI,_eredand _novement is in

Activities

the various nQdes.

DIAG_S

of each other, diseussioas

Paper NO o I_

in order_

steps.

When.

they follow separate

olea_e refer to the data

- 21-

o_4

_ _

a.l I%,,Q ,,'_ e)

_ 4-,_

C'J O r---

I"- _

.,_,-.

'4-_ _

'44

_.,_

o_ _r,

1"-,

g"-I

II)

,/3

,,,.,/

,-4

q-4

_.,

_v,' _. _,_ _ 0

,,-I ._ ¢1

_'I I ,....4 0 ,'_ ,_1 .M ,,:'/_

0 '_" _ _ _ c.) 0

•

_ "_ '_ iO ,...4

C._

, .,',1

'_ _ C_,

0 _

_ _:

6J _

,.-_ O

_ O ,_,,I _,I

_ 0 _

,_,

¢d

f.1

,r-I r'--

0 ;1

,,4

_,.,_ O,

f13

_4 "0 u.._ ,r4 _) _ _,4 0

_.,4

O) _-I

•_

,r4

4-1

•l,.J L._ l,_

- 23 -

u'_

,-4

b" ,'_,

_--I

_ '_

m 4-I _,)

-'.4 .'_

C_',

ct'. ._

,_,-_

,,_

•

',d" -_

¢) 0

_ t_

,_-I

1.4

,I-I

CO _

_,)I_1 -_, ¢)

_ _

o_,,--I ,_

4J _

•

..-_i _1 o .,H 0

_FINED PZO_,UCTS CONSm_T[O_ Step. i0-II

l-_

Activity Compute second semester of refined products for annual and first,: s_ester co_usi_nption (in bb!s)

classified

by. sector

-_,_- transportstion,

Compute whole year and first semester diesel and fuel oil from !974 to 1979 regular gasoline sector by taking 3-4_

6-9

as a residual 1979.

Compute whole year and first semester constu_ption share __n %) of _T_ ]uerosene diesel and fuel oil b,f sector fro_ ]970 to ].973 PIP C_vernment Trade da_a (in bbls)

5-6

these sectors from !970 to

!-4 and

products

for

consum..ption and avturbo,

and

others.

shares (in %) of LPG_ kerosene_ aviation gasoline, premium and

from 1970 to i979 for the transportation_ utilities and others their respective shares from Direct Consu___m. er data "Steps 2-_3_

4-5)

Apply the shares Govern__ent Trade

utilities

and

adjusting

the

totals

derived from Step I-6 data to obtain annual

transportation_

second semester of annual and

utilities

100%o

and and

5-6 to annual first semester

and

others

and first semester PNOC con-_umption of refined

from

1970

to !979

(in bbis)

consumption of refined products first semester consumption from

for 1970

these sectors as a _j o to !97=p. (in bbi_l

9-11

Co_uute residual

i-7

aviation gasoline_ Net..out the consumption of T'_''._: _ kerosene_ and _U_ "4_ of avturbo_ premium and regular gasoline_diese! and fuel oil from semestral PNOC Reseller Trade da;-9_ from 1970 to l..7_J in order to de_ive consumption of refined products by the house_hold sector for each sen,ester from 1970 to 1979 (in bbls) o

7-!1

Classify the remaining 7L_% semestral premi,,_L1sad regular _!asoline._ diesel transportation

sector.

consumption of avturbo_ and fuel oil from 1970

aviation gasoline_ to 1979 under the

i ,_ i

_FINED

PRODUCTS

CONS_+[PT!ON

Step 11-12

Activity Add refined products consumption from Direct Consumer+ Goverr_ent semester from 1970 to 1979+ Add refined products Direct Consu:_er and 1970 to 1979.

of the +transportation' and Reseller Trade data

sector : (in bb!,_

consumption of the _utilities + sector ns de_ Government Trade data (in bbls) for each s_:

ived _ '

from from l

Add

refined

Consu_ler i-8

Compute

refineries price {in I_ 8-._

!2-13

products and

Apply

the

+ output %)°

Interpolate for 1975 to

consumption

Government

1969 1979

derived

Trade

constructiono_

f,:om the

and t_ and

of dat_

!96_

___,_ I-0 _"+"_ %)

Convert

all

set_estral

_others + sector

{in

bbls)

co_merce and

interpolated

products consumption of _t_e _others constr_ction_ co_nerce and services 13-14

the

const_>tion

and

services

as deriw s_._nester .. _ sector

1974

Input-Output

(I-O)

from

1970

to 1973

and

1970-79

to semestral

!-0

sh._res_

+ sector 1970-79 estimates

mining+ manuf?+cturing, trs+nsportntion_ and households (in bhls) from 1970 to

for e_ch

to break up (in bbls)+ of

refined

table

use

the

t__±s sector

products

utilities+ construction_ ,f_lO _[+_alor_es+ • --_ • _919 to _

for

m Direct __ _, to 1979. ro!eum at producers

!974

refined into

agriculture,

c+_m_eree_

services

Fi_

',ons_mp tion

_OAL CONS _tep [-2

Activity T _dent1_v "_ major consuming sector fro--_.-annual coal eonsumDtlon company, Bureau of Hines_ 1970-73o

2-4

-..repute consumption

I-3

_entify major consuming sector from semestral coal consu._ption data (in at) by )npany, Bureau of Mines_ 1974-76, _EU_ !977-79.

3_-5

Compute consumption I_7a-79 (in 째J"

per sector

for each year from 1970-73

data {in mr) by

per sector for the first and second

(in %).

semester of each year from I

1-4

Add semestral coal production and imports (in at) from Central Bank and }3ureau of Mines fcr 1970-73 to deriv_ senestral aggregate coal consumption (in mt) o

1-5

Add semestral c>__lproduction and imports (in at) from Central Bank nnd Bureau Mines for 1974-79 to derive se_.nestre.l aggregate coal consumption (in mr) 0

4-6

Apply computed annual consumption share/sector co_l consumption from Step ]-4 for 1970-73o

5-6

Apply computed semestral consumption share/sector coal consumption from Step i-5 for 1974-79o

6-7

Convert all consumption 1970-79,

estimates per sector

derived

in Step 2--4 t3 aggregate

derived in Step 3-5 to aggregate

(mr) to I0 I0 kl._,Jc.al,_les,semestral

17 3

18 I

Figure Ao4

Electricity

Consumption

ELECTRICITY

CO NS _-'3_ TION

Step I-2

Activity Co_;$_te

seuestral

electricity

consumption

from

raonthly

data

Economic Indicators electricity consumption by industrial_ residential, co_erciai and others use (in mkwh)_ 1972-76. 2_3

Compute

first

semester

dentiai_uti!ities 3-7

Apply

first

and

semester

ann_,al electricity dentist, utilities 7-11

Derive

second

annual

and

2---6

For the con_pute sumption

6_i0

Ap@ly the con:puted weighted Revised Table B째12_ 1973-7!

from

darived

co_m.ercial,

1972--76

iu Ste_. 2-3

the

NEDA

industrial,

to annual to _._s_.J

rssi-

consu..nption

(in %),

Table

1972_76

8-12,

per _-_ct._ ioa. commercial, industrial, resi-_to derive first semester consumption (in nkwh)

electricity

s,m_estcr

sector

cons_p.tion and )_h_._

semester

first

consumption others

utilities,

cons_,_tion

consu_tion_

sector

-as _ residu_l

_,,la__-!o ....k!n mhqh)째

_ I

cor_.,_.ereial_industriai._ residential_, utilities an:_ others sector_ a weighted average of first se._-...sster consun!_tion to annual confrom i972--74 (in %),

industria!_ electricity

first se_ester c,:'.nsu__tion sh,are fre_ _nnual electricity consumption of the

residentia!_ utilities consul,rip t ion o

_.nd others

sector

derive

10-11

Derive second semester co'nsu_ption by sector as a residual semester consumption (in mmq,a., : '_ ..... __:_7u-7_ after accomplishing

1-_ii

Compute semestral e!eetz-icity consu_Dtion frc_?,_onthly :3.!2 electricity cons_.,nption by eom_ereia!._ industrial, an_" others use (in mkwh)_ _;17-,_o

Step 2-6 to co_ercial_

f_rs_

semester

of annu._l and Step 6-10o

first

data of Revised Table residentia!_ utilities

ELECTRIC

I _f CO_$SUMPTION

Step i-4

Act ivity C_mpute sectors Table

share of manufacturing_ mining_ of electricity consumption from an

pro4ucer'.s

prices

construction, the 1969 and

co.mmerce and services 1974 Input-Output (I-O)

(in %)째

4--$

Interpolate 1970-73 use the 1974 shares

8-13

Apply manufacturing a_d mining share, 1970-79 {in %) to semestral electricity consu__.pti_n _f the industrial sector (in m_c_h), 1970-.79 to derive electricity consumption of _r_anufacturing _ __d ':mining _' sectors_ apply construction_ commerce and services share_ hq70-79 (in Y0 to semestral electricity consumption of the ce_nerciai sector (in mkwh).!970--79 to derive electricity consumption of _'construction

11--13

13-15

shares fro_ for 1975-79

the (in

com_,uted %)째

i-O

for

1969

and

_974

and

'_, "e_D_.----------------_erce _' an.d __se_--vices3 _ sectors째

Classify semestral electricity consumption of residential "household " Classsify semestral electricity con_umption 1970-79 _nder ':utilities _*. Classify semeatr al electricity sectors_

1970-79,

Convert

semestral

under

mining; construction_ !0 I0 kiiocalories.

sector, 1970-79, _,nder of utilities sector, consumption of others

"agriculture"o

electricity co_erce,

c_-mstLmption, services_

1970-79

utilities,

agriculture,

and

household

manufacturing, (in mkwh)

u_ o

ELECTRICITY

CONSUI._T ION

Step

Activity

i-5

Compute products

first and second s__nester sh_res to annual production (in I0 I0 kiloealories) frown 1970-75 (in %)°

5-9

Apply first consumption

and second semester ratios derived in Step of petro!eu_u refineries (in mk_h) from the

1970_71, NCS0 1972 and 1975 refineries

A_tual Survey of _ianufactures to derive senlestral electricity

fr.o_, i_70-75

(in

of petroieu_n

i-5 to annual electricity _KDA STatistical Yearbook

1973-74_ and consumption

NCSO Economic of petroleum

Census

mi_4h)_ o_

9-12

Convert semestral _lectricity consumption •(in mkwh) into IO b kiioealories_

12-1-4

Compute ratio kiioca!ories) e_ch seraester

14-15

_Apply ratios

derivsd

_970-75

Step

12-14

to semestral

semestral electricity from 1976_.79o "

production

consumption

of of

i0 I0 for

refi_zed products

"oetrole_

refineries

Subtract 1970-79 semestral electricity consumption of petrole:mn_, refineries (ii', luq l'rJ .¢1_oca]O_i_s) _1"1 v-_ f-r __o_. _ el_ctrlclty _ " " consumption ; t" orr _"_anuf,_ctnrin_" " sector for • ON .. the s_m__e period (as derived krom Step g--!_, :,sem_estr_! electricity cons_mnption of r'mannfacturing_ subseetoro

16-17

refineries,

of e!ectricitv consumption of ,_.etrole_ refineries (in to production-of refined products (in iO i0 kiiocaiories) from 1970 _o 1975 (in %).

from i_,_6_79 to derive t-n i0 %r_.ioca±orles) 15-16

of petro!et_

Consolidate

sector

semestral

_'mining_'_ _construction snder

'_Consuming

froze i970-79_

electricity

no_ _ -excludes

cons_i_ptiof_

petroleu-_

of ';agrieu!ture':_

_ _ '_cor_emee" _ ;_se-c¢ices _ and

"_ector_ >:.

the

_household

refineries

"_an_Ifaeturing _' from

1970-79,

"_,

ELECTRICITY

CONSUMPTION

Step

_ctivity

16-18

Classify semestral electricity consumption kilocalories) 1970-79 under _Tra_isformation

of petroleu_ Sector _'.

16-19

Classify part of

!_7-13

Add electricity const_nption e f "consuming sectors '_ and '_pet_!e_,_ refineries to derive electricity gener_ion_ semestral, 1970-79 (in I0 _ kilocalories),.

semestral electricity o_nsumption of losses in the transformation sector.

_utilities"

refineries

sector,

(in

i0 !0

1970-79

_' l ko l

•

" '

Figure A°5

Hydrogeothermal

Electricity

Consumption

HYDROGEOTHERMAL

ELECTRICITY

PRODUCTIO_q

AND

CONSUMPTION

S tep

Act ivi ty

1-3

Compute semestral electricity production fron m_,nthly NEDA Philippine Economic Indicators from 1972-76 (in mkwh).

data

3-4

Compute first semester shares of electricity semestral data fro:_ the Zc_),_.Ior_ic Indicators

4-5

Get weighted percont:_ge of 1972.-74 first se_ester shares of city production fr_m Stei._ 3-4 t_:_obtain first so,nester share electricity prvduction for I969-71 (in %)_

fro_

the

production from fro_i 1972-76, electri_ of t &-.

5-6

Apply first fro_a Steps mk_#h)

semester 3-4_ 4-5

sh_res of to !972-76

electricity production as derived annual electricity production (in

6-7

Fro_ Step 5-6, derive second semester electricity 1969-76 as a ,residual of annual and first semester production fro_1 1972-_-76 (in nkwh)o

1-2

Compute % share :_.fhydro_eotherT_al electricity production to total e!ect__:icity production fro_ all sources for each year fro._ the NPC Ten-Year historical enerzy generation (in _kwh) _.er source table fro_ i969_-78 _nd fron the BEU for 1979,

2-7

Com_ute sen_estrai electricity ;_roduction (in _.kwh) fro_ data of Revised Table 8.12 for 1977-78 and the Economic Indicators

production electricity

from

,,nonthl짜 for- 1979.

HYDROGEOTHERMAL

ELECTRICITY

PRODUCTION

AND

CO!'_SU?-_PT!ON

St ep 7-8

Act Apply

hydrogeotheruml

ivity

electricityproduction

total

electricity

generated from all sources, as derived from Step 1-25 to semestra,1 quantity of electricity production (in mkwh)_ as derived from Steps 2-7, 5!_6_ 6-7, to obtaln semestrai produe_lon oL __ydrog_otE_erma. e]_ectricity from 1969-79 :_--9

_ _, e.__.._t_l_l_ Equate se_estr_.[ hydro_eothermal !,.... "_'_v to h_id_o_,e.... ler,_:째_l .... ., consumptlOno _ _ _ ,_-_ , ,-,_ ei_ce_icitv 째

9-10

Convert

all

estimates

fin r_b._h)

1.010

.._ _roduction

kilocalories,

(in mk_vh)_",!970-79 _. u-ca. L