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The paper presents a preliminary assessment on impact of smart electric storage heating on distribution grid in comparison to conventional electric heating if heating electrification is partly introduced. Real-world data of electric load, heating demand, electricity prices and ambient temperature was used for simulations to conclude that while a small penetration of smart storage heating can facilitate...
During the recent years, power industries have been facing significant changes due to deregulation and liberalization of the energy markets and increase of the installed capacity of renewable energy sources. These factors directly affect the transmission network planning (TNP) task and inspire a search for new, more adequate methods. This paper compares a deterministic method — the economic intervals...
This paper presents a stochastic optimization approach to the feasibility study for power lines, taking into account market conditions. To validate the proposed stochastic approach, an economic comparison of several power line design alternatives has been done, considering technical issues as well. The final evaluation and analysis was based on the results obtained by applying both approaches: the...
This paper deals with the concept of the stochastic optimization methodology for power line designing, which allows optimizing transmission network planning. The paper presents a comparison of both methods applied for selecting the best line design alternative — the deterministic economic intervals method and the stochastic approach based method, taking into account market conditions. Both methods...
The increase of storeyedness of dwelling houses and administrative buildings, far of the large point loads and separate regions with high load densities results in the necessity to enter higher level of voltage in the urban power supply system. These tendencies are typical for Riga city — the capital of Latvia and main administrative, industrial, financial, business and cultural centers. Existent...
The paper presents a comparison of two methodologies for selection of overhead line wire type and cross-section considering market conditions. All existing methodologies which are used to determine optimal cross-section for transmission line wires can be divided into two categories: deterministic and probabilistic (stochastic). This paper presents a new approach for stochastic optimization and compares...
The paper focuses on the development strategies in Latvian largest city (Riga), analysis of its existing infrastructure and complex approach to formation of load density at city. Well-founded the future loads' definition on early stages of long-term planning and medium-term design is offered. The development process at districts and microdistricts of large city is mainly provided by growth of loads...
A stochastic approach is proposed for selecting the overhead line cross-sections that would be optimal taking into account the electricity market conditions. For this purpose, several conductor types with different conductor cross-sections were considered including the High Temperature Low Sag conductor types such as ACCC and ACCR, which are a part of the advanced technology. The total capital costs...
The paper focuses on the development strategies in Latvian largest city (Riga), systematization of its existing infrastructure and load density formation. Well-founded approach to the future loads' definition on early stages of long-term planning and medium-term design is offered. The development process at district and microdistrict of large city is mainly provided by growth of load and according...
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