Luis Gutierrez-Lagos

Universidad Adolfo Ibáñez · Facultad de Ingeniería y Ciencias

Conservation Voltage Reduction (CVR) has been traditionally applied adopting moderate settings at primary substations and when distributed generation was uncommon. However, as new infrastructure is deployed across European-style MV and LV networks, driven by increasing photovoltaic (PV) penetration levels, the opportunity arises to develop more adv...

The number of residential consumers with solar PV and batteries, aka prosumers, has been increasing in recent years. Incentives now exist for prosumers to operate their batteries in more profitable ways than self-consumption mode. However, this can increase prosumer exports or imports, resulting in power flows that can lead to voltage and thermal l...

Distributed energy resources (DER), such as photovoltaic systems and batteries, are becoming common among households. Although the main objective is reducing electricity imports (bills), they could also provide system-level services via an aggregator. However, the more DER provide services, the more important is ensuring that the corresponding oper...

The increasing uptake of distributed energy resources (DER) poses significant operational challenges to Distribution Network Operators (DNOs). In this context, AC Optimal Power Flow (OPF)-based approaches have the potential to aid DNOs' decision-making, to enable the operational orchestration of DER and network elements, improving performance while...

Conservation Voltage Reduction (CVR) is a well-known technique to reduce energy consumption by reducing the supplied voltage within statutory limits. Historically, the efficacy of CVR schemes has been quantified using the CVR factor (CVRf) which relates, in a given period, voltage reduction to energy savings. This metric has proved useful in the pa...

This document seeks to contribute to society and its decision-makers with the best available scientific evidence on Chile’s Renewable Energy (RE) Export Potential and the opportunities and challenges that such potential opens for Chile’s commitment to carbon neutrality. It also aims to provide a useful input for the dialogues that the country will...

In the last decade, Conservation Voltage Reduction (CVR) has regained attention as an energy efficiency measure. At the same time, many customers in LV networks have adopted PV systems. Although CVR has been studied for decades, most works were developed when PV were uncommon, leaving the interactions between widespread PV and CVR largely unexplore...

The increasing awareness on the effect of carbon emissions in our planet has led to several countries to adopt targets for their reduction. One way of contributing to this aim is to use and distribute electricity more efficiently. In this context, Conservation Voltage Reduction (CVR), a well-known technique that takes advantage of the positive corr...

Distribution networks have been traditionally designed with limited monitoring and controllability. Therefore, most Conservation Voltage Reduction (CVR) schemes have been implemented in MV networks. However, the deployment of on-load tap changers (OLTCs) and monitoring in LV networks creates the opportunity to actively manage voltages closer to end...

This report summarises the key messages, recommendations and findings from the final deliverables of the academic studies carried out for the Smart Street project by The University of Manchester, Queen’s University Belfast and TNEI.

This interim report, part of WP2 “Retrofit Design and Operation of Interconnected LV Networks”, extends the previous WP studies by exploring the benefits of J-connections in LV feeders considering projected demand and distributed generation scenarios.

Deliverable 2.3 explored the most beneficial times of ring operation between different feeders to host LCTs, by interconnecting only when voltage or congestion problems arise. This interim report, part of WP2 “Retrofit Design and Operation of Interconnected LV Networks”, extends the previous study by exploring the benefits of time-based interconnec...

Deliverable 2.2 showed that LCTs (PV systems and EVs) mostly affect residential LV feeders with large number of customers (dense residential) and that permanent ring operation can increase the hosting capacity of PV systems and EVs in up to 10 and 30%, respectively (compared to radial operation). Deliverable 2.3 explores the most beneficial times a...

The effectiveness of Conservation Voltage Reduction (CVR) in reducing energy consumption depends on the instantaneous load composition in the network which is affected by the types of customers. This work investigates the benefits from adequately considering residential customer types and their corresponding time-varying models in obtaining realist...

This document presents an analysis of LV interconnections for increasing the hosting capacity of photovoltaic systems and electric vehicles. This deliverable is part of WP2 “Retrofit Design and Operation of Interconnected LV Networks”.

This document presents the adopted methodology and simulation framework, including initial results part of WP2 “Retrofit Design and Operation of Interconnected LV Networks”.

This document aims to describe the employed methodology to translate CRMS data from Electricity North West Limited (ENWL) into OpenDSS models. In particular this report refers to the modelling of the 38 LV networks involved in the Smart Street project.

Durante el año 2008 hubo una fuerte restricción en la oferta de energía en el SIC, debido a condiciones hidrológicas adversas, ausencia de gas natural y escasa inversión en nuevas plantas de generación. Para evitar el racionamiento, entre otras medidas la autoridad instruyó a las empresas distribuidoras a reducir la tensión en el punto de conexión...