Non-Wire Alternatives to Capacity Expansion

Contreras-Ocaña, Jesus E.; Siddiqi, Uzma; Zhang, Baosen

doi:10.1109/pesgm.2018.8586182

Cited by 8 publications

(9 citation statements)

References 16 publications

(36 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to Federal Energy Regulatory Commission (FERC) order No. 1000 ( Contreras-Ocaña et al., 2018 ), and US Department of Energy (DOE), by employing a comprehensive NWA approach customer can achieve the following benefits: Avoid unnecessary construction; Best prioritize the use of capital for construction; Minimize the risk of stranded investment; Enhance capacity of existing systems through detailed analysis; Avoid unnecessary transmission cost increases; and Minimize environmental impacts of transmission enhancements. …”

Section: Non-transmission Solution Using Solar Pv Energymentioning

confidence: 99%

Revitalizing operational reliability of the electrical energy system in Libya: Feasibility analysis of solar generation in local communities

Almaktar

Elbreki

Shaaban

2021

Journal of Cleaner Production

View full text Add to dashboard Cite

The political upheaval and the civil war in Libya had a painful toll on the operational reliability of the electric energy supply system. With frequent power cuts and crumbling infrastructure, mainly due to the damage inflicted upon several power plants and grid assets as well as the lack of maintenance, many Libyans are left without electricity for several hours a day. As the country has a staggeringly immense potential of solar energy, it is inevitable to exploit such potential, to avert system-wide blackouts. This paper investigates the use of small-scale PV systems in local communities as non-wires alternative (NWA), offering excess energy exchange within local/neighboring microgrids (MGs) for reliable electric power supply. Different combinations of PV/storage/diesel distributed generations (DGs), with grid-interface options, were applied on a case study of a typical dwelling in the Eastern Libyan city of Benghazi. Technical and financial feasibility assessments were carried out to contrast between various supply combinations. Sensitivity analysis of the PV-grid system was also conducted using Net Present Value (NPV) and the payback time indicators to determine the impacts of Feed-in Tariff (FiT) rates, financial incentives, electricity tariff, and inflation rate on the economic viability of the PV grid system. Results show that the PV-grid system has a promising potential under reasonable set of varying system parameters. On top of its social and environmental-friendly advantages, the PV-battery system is found to be more economical when adopted as a standalone NWA solution as compared to the diesel generator option, even at the lowest diesel price. The PV-grid system does not only provide a short-term remedy to the rolling blackouts in Libya but also enhances system operational reliability by providing a NWA to rundown or shattered grid infrastructure, thus bolstering energy provision in residential neighborhoods.

show abstract

Section: Non-transmission Solution Using Solar Pv Energymentioning

confidence: 99%

Revitalizing operational reliability of the electrical energy system in Libya: Feasibility analysis of solar generation in local communities

Almaktar

Elbreki

Shaaban

2021

Journal of Cleaner Production

View full text Add to dashboard Cite

show abstract

“…Let BLSEF(β i ) denote a function that takes the scalar β i ∈ (0, 1) and solves problem (5) and outputs the optimal values of a c,t a c,t,i , b c,t,i , b c,t,i , J A t,i , and calculates the percentage of training measurements that are higher than the upper estimate or lower than the lower estimate π out t,i . The percentage of out of prediction band measurements is calculated as…”

Section: The Blse Algorithmmentioning

confidence: 99%

“…The parameter M is an integer greater than 1 to be selected by the modeler 5 . The outputs of the BLSE algorithm are the trained parameters ofθ L k,t andθ U k,t .…”

Section: The Blse Algorithmmentioning

confidence: 99%

“…Some of the benefits of increased power system flexibility include deferral of infrastructure investments [4], [5], increase of renewable energy hosting capacity [6], increased economic efficiency [7], and others (see, e.g., [8], [9] and the references therein). However, to fully harvest the flexibility of TCLs, challenges still remain: developing appropriate building models, aggregating those models for large-scale implementation, data privacy, state estimation of flexible loads, among others [9]- [11].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tractable and Robust Modeling of Building Flexibility Using Coarse Data

Contreras-Ocaña

Ortega‐Vazquez

Kirschen

et al. 2018

IEEE Trans. Power Syst.

Self Cite

View full text Add to dashboard Cite

Controllable building loads have the potential to increase the flexibility of power systems. A key step in developing effective and attainable load control policies is modeling the set of feasible building load profiles. In this paper, we consider buildings whose source of flexibility is their HVAC loads. We propose a data-driven method to empirically estimate a robust feasible region of the load using coarse data, that is, using only total building load and average indoor temperatures. The proposed method uses easy-to-gather coarse data and can be adapted to buildings of any type. The resulting feasible region model is robust to temperature prediction errors and is described by linear constraints. The mathematical simplicity of these constraints makes the proposed model adaptable to many power system applications, for example, economic dispatch, and optimal power flow. We validate our model using data from EnergyPlus and demonstrate its usefulness through a case study in which flexible building loads are used to balance errors of wind power forecasts.

show abstract

“…Therefore, enhancing the system's resilience to ensure a certain level of service under severe weather events, particularly for mission-critical facilities such as hospitals and fire stations, is indispensable. Apart from utility grid hardening and reinforcement plans, which might be either traditional capacity expansion plans to ensure system adequacy [7] or non-wires alternatives (NWA) against traditional investments [8], critical facilities can also utilize behind-the-meter (BTM) distributed energy resources (DERs) that are configured to operate even when the utility grid is jeopardized.…”

mentioning

confidence: 99%

Resilience-Oriented Behind-the-Meter Energy Storage System Evaluation for Mission-Critical Facilities

et al. 2021

View full text Add to dashboard Cite

Immunization of mission-critical facilities such as hospitals and first responders against power outages is crucial for the operators due to their significant value of the lost load, affecting citizens' lives. This paper proposes a novel evaluating framework which enables facility operators to efficiently size and optimally dispatch their behind-the-meter energy storage systems (BTM-ESS) for resiliency purposes during grid emergencies. The proposed framework, formulated as a mixed integer linear programming model, aids facility operators to quantify the impacts of various BTM-ESSs on resilience enhancement where the Avoided Loss of Load (ALOL) is incorporated as the resilience indicator. BTM-ESS is assumed to be operated in both standalone and coupled with solar photovoltaic (PV) as an onside backup generation which is a viable energy solution for more prolonged power outages. The proposed model is developed on a probabilistic energy procurement model, aiming to minimize the facility's total operation cost. The uncertainty of power outages is characterized by a set of a large number of scenarios generated by the bruteforce enumeration method. Additionally, to analyze the impacts of facilities' behaviors on the BTM-ESS evaluation procedure, a set of 24 facilities from different end use sectors with various functionalities are simulated by employing our in-house-developed building simulator, which is a physics-based simulation tool. Finally, the practicality of the proposed evaluating framework is investigated through two case studies where both short and long-duration grid outages are examined based on the historical outage data adopted from New Jersey, USA. The simulation results reveal that a BTM-ESS with 4 hours discharge duration that is sized at rated power equal to 50% or more of the facility's peak load generates sufficient resilience benefits for most of the 24 representative facilities in case of short-duration power outages.

show abstract

Non-Wire Alternatives to Capacity Expansion

Cited by 8 publications

References 16 publications

Revitalizing operational reliability of the electrical energy system in Libya: Feasibility analysis of solar generation in local communities

Revitalizing operational reliability of the electrical energy system in Libya: Feasibility analysis of solar generation in local communities

Tractable and Robust Modeling of Building Flexibility Using Coarse Data

Resilience-Oriented Behind-the-Meter Energy Storage System Evaluation for Mission-Critical Facilities

Contact Info

Product

Resources

About