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This paper reviews several grid tariff schemes, including flat tariff, time-of-use, time-varying tariff, demand charge and dynamic tariff (DT), from the perspective of the long term incentives. The long term incentives can motivate the owners of flexible demands to change their energy consumption behavior in such a way that the power system operation issues, such as system balance and congestion,...
Grid electricity systems have evolved from un-complex systems and loosely coupled transmission grids, up to the state of the art present-day as highly complex and tightly coupled infrastructures, greatly based on automation systems with various levels of reliability. Tasmania's electricity ecosystem is both representative of international norms and sharply more mature in terms of renewable energy...
Energy Storage Systems (ESS) provide a solution allowing higher levels of Renewable Energy (RE) integration into electricity systems, as the intermittency of RE power output can be addressed with storage solutions. This paper evaluates the value propositions of commercially available ESS for wind farms in Australia, focusing on power applications as a relevant market segment of the energy storage...
To cover its rapidly increasing power demand is one of the biggest challenges of the ASEAN (Association of Southeast Asian Nations) region. But even though ASEAN offers abundant untapped renewable energy sources, its current power generation is strongly based on fossil fuels, mainly due to economic reasons. Trans-border electricity trade could increase economic viability of exploiting renewable energy...
This paper proposes a multi-objective optimization formulation to design a hybrid wind-photovoltaic-storage system to supply the demand. This design problem aims to minimize the annual cost of the overall system as well as the CO2 emissions, and is solved by Artificial Bee Colony (ABC) algorithm. Solar irradiation, wind speed, and load data are assumed deterministic. Prices are all empirical and components...
Generation expansion planning (GEP) is becoming more complicated with the integration of renewable energy sources (RES). Using the decomposition-coordination technique, the nonlinear optimization problem of GEP is decomposed into sub-problems, whose results are coordinated to obtain the optimal GEP scheme by iteration. However, using the conventional iterative method to solve GEP is becoming more...
An ambitious target of 175 GW installed capacity of renewable energy sources by 2022 has been put forth by the Government of India. It is imperative that a sustainable regulatory and commercial framework is put in place to facilitate forecasting, scheduling, imbalance handling and settlement framework of renewables. This will enable electricity market access to renewables at both intra-state and inter-state...
Microgrids will make fuller consumption of renewable energy by connecting with each other. On that scenario, the generation schedule is supposed to be optimized on view of the total interconnected microgrids (IMGs), which may infringe the privacy of MG. A distributed optimization method for generation scheduling of MIGs using the alternating direction method of multipliers (ADMM) is proposed in this...
The penetration level of renewable energy generation has been increasing in some actual power systems, and hence introduces some new problems and even challenges for transmission system planning. In modern transmission system planning, it is necessary to consider the accommodation capability of renewable energy generation, in addition to the traditional requirement for power system reliability. Given...
In Australia, grid integration of renewable energy (RE) resources has been very popular due to public awareness of climate change and favorable government policies. The initial mandatory renewable energy target (MRET) has been successful and there has been a revised target (RET) set for next decade. On the other hand, there are some regulatory and technical issues posing hindrances to the development...
In this paper, integration of solar panel based renewable energy distributed generation (DG) with conventional diesel-engine generator in a microgrid has been studied in both grid-connected and islanded modes. Besides solar energy based DG and diesel generator, a grid-forming and a grid-supporting distributed generators are also included in the microgrid. The grid-forming DG adopts constant frequency...
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