Selling Power System Flexibility: Ancillary Service and Real-Time Energy Market Challenges for Storage

2014 ◽  
Author(s):  
Brendan Kirby
Keyword(s):  
Power System ◽  
Demand Response ◽  
New Technologies ◽  
Service Providers ◽  
Market Design ◽  
Ancillary Service ◽  
Market Prices ◽  
Regulatory Changes ◽  
System Access ◽  
Power System Flexibility

Power system operators obtain the flexibility required to reliably balance aggregate generation and load through ancillary service and five-minute energy markets. Market prices are based on the marginal opportunity costs of the generators. This market design works well for generators but inherently fails for storage and demand response, denying these new technologies a fair opportunity to compete and denying the power system access to potentially lower cost reliability resources. Market design or regulatory changes may be required for storage and demand response to be viable ancillary service providers.

scholarly journals Power system flexibility improvement with a focus on demand response and wind power variability

2020 ◽  
Vol 14 (6) ◽  
pp. 1095-1103 ◽  
Author(s):  
Akbar Dadkhah ◽  
Behrooz Vahidi ◽  
Miadreza Shafie‐khah ◽  
João P.S. Catalão
Keyword(s):  
Power System ◽  
Wind Power ◽  
Demand Response ◽  
On Demand ◽  
Power System Flexibility

scholarly journals Incentive based Demand Response Program for Power System Flexibility Enhancement

2020 ◽  
pp. 1-1
Author(s):  
Baraa Mohandes ◽  
Mohamed S. El Moursi ◽  
Nikos Hatziargyriou ◽  
Sameh El Khatib
Keyword(s):  
Power System ◽  
Demand Response ◽  
Demand Response Program ◽  
Power System Flexibility

scholarly journals Challenges of Storage in Large Power Systems

2021 ◽  
Author(s):  
Gustavo A. Gómez-Ramírez ◽  
Carlos Meza
Keyword(s):  
Solar Energy ◽  
Power Systems ◽  
Power System ◽  
Central America ◽  
Service Providers ◽  
Voltage Regulation ◽  
Frequency Regulation ◽  
Ancillary Service ◽  
Large Power ◽  
Power Sources

Fossil fuel-based electric generation is a contributor to air pollution in the world. In this regard, storage provides a viable specially if it is combined with solar energy and wind generation. Storage also represents a major challenge for the traditional criteria for planning the power system, which its generated with hydro and non-renewable generation as Central America case. This article reviews literature in loadability, frequency regulation and control, stability, economic issues, reliability, harmonics and power quality and resilience applied to power systems. It presents a simulation using ETAP to analyze voltage profiles considering storage for El Salvador Power System (ESPS). The result shows a significant contribution in to enhance the voltage profiles and voltage regulation after failed. Opportunities also arise when storage is considered as potential ancillary service providers that can help to stabilize the grid under faulty situation or to mitigate the power generation variability of non-traditional renewable power sources such as wind and solar energy in Central America Power System. The present paper provides an overview of the major challenges of storage to large power systems.

Pathways ahead for New Zealand hill country farming

2016 ◽  
Vol 78 ◽  
pp. 73-82 ◽  
Author(s):  
F.G. Scrimgeour
Keyword(s):  
New Zealand ◽  
Rural Communities ◽  
New Technologies ◽  
Service Providers ◽  
Farming Systems ◽  
Hill Country ◽  
The Status ◽  
And Performance ◽  
Hill Farming ◽  
The Hill

This paper provides a stocktake of the status of hill country farming in New Zealand and addresses the challenges which will determine its future state and performance. It arises out of the Hill Country Symposium, held in Rotorua, New Zealand, 12-13 April 2016. This paper surveys people, policy, business and change, farming systems for hill country, soil nutrients and the environment, plants for hill country, animals, animal feeding and productivity, and strategies for achieving sustainable outcomes in the hill country. This paper concludes by identifying approaches to: support current and future hill country farmers and service providers, to effectively and efficiently deal with change; link hill farming businesses to effective value chains and new markets to achieve sufficient and stable profitability; reward farmers for the careful management of natural resources on their farm; ensure that new technologies which improve the efficient use of input resources are developed; and strategies to achieve vibrant rural communities which strengthen hill country farming businesses and their service providers. Keywords: farming systems, hill country, people, policy, productivity, profitability, sustainability

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