Embed Size (px)
Citation preview
Seminário Regulação, Infraestrutura e o Futuro do País
FGV, 31 julho 2014
Jerson KelmanCOPPE-UFRJ
Explaining to the consumer the rise of electric energy tariff
Tariff calculation is based on the “required revenue” of the discos
Non manageable costs (Parcel A):
Pass through
EnergyTaxesTransmission system
Manageable costs(Parcel B):
Subject to the regulator
O&MDepreciationRemuneration of the capital
+
–
64 distribution companies
Parcel APass trough
Parcel BRegulated
Present situation (2014)
The dispatcher ranks the generators by unit price
5
In countries that get electricity from coal or oil, power dispatch is done “locally” and is
conceptually a simple matter
6
FutureToday
Time
In countries that most of the electricity is generated by hydro plants, hydrological uncertainty is a relevant issue
Future water storage depends on present storage, future water inflow and the decision about how much thermoelectricity
could be substituted by hydroelectricity
rbhrghrbgrfrrfrr Região Sudeste / Centro-Oeste
0
20
40
60
80
100
120
Nov/99 Dez/99 Jan/00 Fev/00 Mar/00 Abr/00 Mai/00 Jun/00 Jul/00 Ago/00 Set/00 Out/00 Nov/00 Dez/00
% EAR MÁX
Hydrological uncertainty
Reliability
Energy buyers (distribution companies & free consumers): 100% of the energy consumption should be
contracted through PPAs
Energy sellers (generators) ∑ PPAs < calculated firm energy
Energy producer 1
Energyproducer 2
EnergyProducer m
.
.
.
Disco 1
Disco 2
Disco n
.
.
.
New power plants are built if their proponents win Government organized auctions of PPAs
CEMIG
FURNAS
AES-TIETÊ
CESP
CDSA
Consórcios
COPEL
TRACTEBEL
ITAIPUBinacional
Rio Grande
Rio Paranaíba
Rio Tietê
Rio Paranapanema
Rio Iguaçu
CEMIG
FURNAS
AES-TIETÊ
CESP
CDSA
Consórcios
COPEL
TRACTEBEL
ITAIPUBinacional
Rio Grande
Rio Paranaíba
Rio Tietê
Rio Paranapanema
Rio Iguaçu
Centralized dispatchIn order to take advantage of hydrological diversity, energy is transported through long distances
Hydropower plants in the same river basin are own by different companies
Hydropower plants share the joint production proportionally to the firm energies
Three contemporary regulatory problems
How to incentive the existing hydropower plants to be transparent, innovative and efficient?
Regulatory activism X Regulatory stability
How to allocate the energy theft and delinquency cost between the Discos and the honest consumers?
