Abstract
Large cities around the world continue to grow larger. This is also the case of Bucharest, the capital city of Romania and one of the largest and most densely populated locations in Eastern Europe. In this article authors present an overview of the development of Bucharest as the largest electricity consumer amongst the Romanian municipalities and analyse possible solutions for the refurbishment of the HV (High Voltage) grid. This process needs to help the city development and its transition to a Smart City. At first authors present the strategy of local authorities for improving the living standard and decrease the environmental pollution. The impact of this strategy on the electrical energy demand is further analysed. Possible technologies are presented for substations and electrical lines starting from the current situation of the transmission network. All these can contribute to a decrease of the environmental impact and to an increase in the continuity of the power supply. Technical and economical evaluation of the refurbished grid is further presented along with a sensitivity analysis. The evaluation of the investment is made by taking into consideration the demand forecast. Lines and transformers are sized and chosen with the best available technology. For the economic analysis authors used criteria accepted by funding sources, banks especially, such as NPV and IRR. The sensitivity of the project economics is tested and discussed. As conclusions authors present the environmental benefits of gradually changing the technology used for electricity transmission in a large city such as Bucharest, mainly regarding land occupancy with switchgear and line routes and soil pollution.
Highlights
In the last decades cities around the world embraced the smart development concept [1]
The predominantly urban regions have less than 20 % rural population, intermediate regions between 20 % and 50 % and predominantly rural regions more than 50 % [5]
In a chart provided by Easy Park Group [9], Bucharest is ranked on the 87th position among 500 cities considered in a study from 2017, that took into consideration factors such as: Transportation and mobility, Sustainability, Administration, Business environment, Digitalization, Living standard, Experts perception regarding city development
Summary
In the last decades cities around the world embraced the smart development concept [1]. The electricity transmission and distribution systems are using old technologies, influencing the sustainability and the living standard They occupy land with large substations and overhead lines and by using equipment with oil, create a hazard for soil and underground water. Data from the residential market show that in Bucharest around 10,000 new apartments are commissioned each year Most of these are part of residential areas developed in the outskirts of the city where there are high voltage substations and overhead lines.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
