Details
Name
Teresa Ponce LeãoCluster
Power and EnergyRole
External Research CollaboratorSince
01st January 1986
Nationality
PortugalCentre
Power and Energy SystemsContacts
+351222094230
teresa.ponce.leao@inesctec.pt
2012
Authors
Lucy Ting; Hélder Leite; Teresa Ponce Leão
Publication
2nc EEC - 2nd European Energy Conference , Maastricht, Netherlands
Abstract
In order to promote a low-carbon economy, EU citizens may soon be able to check their electricity consumption from smart meter. It is hoped that smart meter can, by providing real-time consumption and pricing information to residential users, help reducing demand for electricity. It is argued in this paper that, according the Elaborative Likelihood Model (ELM), these methods are most likely to be effective when consumers perceive the issue of energy conservation relevant to their lives. Nevertheless, some fundamental characteristics of these methods result in limited amount of perceived personal relevance; for instance, energy expenditure expense may be relatively small comparing to other household expenditure like mortgage and consumption information does not enhance interpersonal trust. In this paper, it is suggested that smart meter can apply the 'nudge' approaches which respond to ELM as the use of simple rules to make decision, which include the change of feedback delivery.
2008
Authors
Paulo de Oliveira Jesus; Edgardo Castronuovo; Teresa Ponce de Leão
Publication
IEEE TEC - IEEE Transactions on Energy Conversion, vol.23, no.2, pp.612-621
Abstract
The reactive power capability of wind generation
(WG) producers can be used to provide volt/voltampere reactive
(var) support in electrical distribution systems. In practice,
the distribution network operator (DNO) is not able to dispatch
reactive power of all generators, and such units are referred to
as nondispatchable generators. Then, the reactive power of these
nondispatchable generators is not a defined value, and it should
accomplish the limits settled by national grid codes. This paper
addresses the optimal reactive power provision of nondispatchable
WG units under a loss allocation strategy based on incremental
generation use of the system (GUoS) tariffs. The optimization
problem is set from generators' viewpoint aiming to find the reactive
power provision that minimizes the loss charges subject to
operational constraints. Optimal solutions are compared with the
DNOs mandatory dispatches using a reactive optimal power flow
tool. Two test systems are analyzed: a 10-kV 28 bus and 60-kV 55-
bus system throughout 672 and 168 h, respectively. The proposal
permits to identify which units can be dispatched by the DNO due
to its effect on the network.
2007
Authors
Paulo Manuel De Oliveira-De Jesus; Maria Teresa Ponce de Leão
Publication
IJGEI - International Journal of Global Energy Issues, vol.27, no.3, pp.355-378
Abstract
2007
Authors
Paulo Manuel De Oliveira-De Jesus; Teresa Ponce de Leão; Hussein Khodr
Publication
IJGEI - International Journal of Global Energy Issues, vol.28, no.1, pp.11-31
Abstract
Different ex-post methodologies have been proposed to allocate
network losses. Under day-ahead pool-based electricity markets, the
implementation of these procedures implies an access-pricing framework based
on half-hour or hourly locational prices. Since every allocation procedure
modifies the locational prices in a different way, the initial market equilibrium
point is altered as a result of the price elasticity of demand. This implies that
some form of cross-subsidy appears among market agents, affecting economic
variables as social welfare and network remuneration. This paper aims to
contribute to the regulatory assessment by means of an analysis based on the
social welfare theory in order to ensure a non-discriminatory access to the
network. A base scenario is obtained through an optimal power flow study with
the purpose of simulating an efficient energy market, and four allocation
philosophies have been considered: incremental, roll-in-embedded, tracing
based and cir
2007
Authors
Paulo De Oliveira-De Jesus; Teresa Ponce de Leão
Publication
IASTED-PES2007 - 9th The Ninth IASTED International Conference on POWER AND ENERGY SYSTEMS PES 2007 , vol.1, no.1, Clearwater-Florida, United States of America
Abstract
The substitution method is a simply procedure widely applied
for loss pricing in real distribution systems with distributed
generation. Some drawbacks have been pointed
out about the consistency and appropriateness of this
method and new and more complex procedures based upon
cost-causality approach have been introduced in the literature.
In this work, the substitution method is revisited
and reformulated including a new performance index with
the aim of produce an equitable sharing of the benefits or
added costs introduced by distributed generators. Under
certain assumptions, the proposal can emulate the solution
provided by a marginal or incremental approach fulfilling
some requirements for an effective loss allocation policy as
facility to understand and apply, ensure recovery of losses
and send out economical signals to agents. This proposal
represents an practical alternative for access pricing in distribution
networks with high penetration of distributed generatio
Supervised Thesis
2021
Author
Tiago José Reis Silva
Institution
UP-FEUP
2021
Author
António Pedro de Novais da Cruz
Institution
UP-FEUP
2019
Author
João Luís Madureira Pires
Institution
UP-FEUP
2019
Author
Nuno Miguel Soares Monteiro
Institution
UP-FEUP
2018
Author
Daniel Fernando de Queiróz Portela Mendes de Figueiredo
Institution
UP-FEUP
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