Michael Blonsky
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View article: Object-Oriented Controllable High-Resolution Residential Energy (OCHRE) (TM) Model
Object-Oriented Controllable High-Resolution Residential Energy (OCHRE) (TM) Model Open
This presentation describes the OCHRE model as part of NREL's Powered By webinar series. OCHRE is a building energy modeling tool designed to model flexible loads in residential buildings. OCHRE includes detailed models and controls for fl…
View article: Addressing Imbalance Risk with Reserves and Flexibility Options: An ERCOT-like Case Study
Addressing Imbalance Risk with Reserves and Flexibility Options: An ERCOT-like Case Study Open
As the role of variable renewables in electricity markets expands, new market products help system operators manage imbalances caused by uncertainty and variability. Whereas work in the last decade has focused on constructing demand curves…
View article: Flexibility Options: A Proposed Product for Managing Imbalance Risk
Flexibility Options: A Proposed Product for Managing Imbalance Risk Open
The presence of variable renewable energy resources with uncertain outputs in day-ahead electricity markets results in additional balancing needs in real-time. Addressing those needs cost-effectively and reliably within a competitive marke…
View article: Nova Analysis: Holistically Valuing the Contributions of Residential Efficiency, Solar and Storage
Nova Analysis: Holistically Valuing the Contributions of Residential Efficiency, Solar and Storage Open
Policies to address climate change and grid modernization, in combination with cost reductions and technological advancements in energy efficiency (EE) and distributed energy resources (DER), are driving rapid deployment of building electr…
View article: An Integrated Framework for Effective Management of Delivery Risk in Electricity Markets: From Batteries to Insurance and Beyond
An Integrated Framework for Effective Management of Delivery Risk in Electricity Markets: From Batteries to Insurance and Beyond Open
Net load imbalances due to imperfect day-ahead forecasts can cause variability in real-time electricity prices and higher system operations costs. We propose a novel market product called Flexibility Options that allow participants to hedg…
View article: Managing Uncertainty and Flexibility in Day-Ahead Electricity Markets
Managing Uncertainty and Flexibility in Day-Ahead Electricity Markets Open
Net load imbalances from day ahead forecasts can lead to significant grid operations costs and are expected to increase as variable renewable energy adoption grows. We propose a new wholesale market product to manage the risk of net load i…
View article: Cost-benefit Analysis of Grid-Supportive Loads for Fast Frequency Response
Cost-benefit Analysis of Grid-Supportive Loads for Fast Frequency Response Open
Flexibility in inverter-based loads could be used to support the converter-dominated power grid by offering a rapid, autonomous, and adjustable power reserve during system transients to help maintain system stability. Based on technical po…
View article: Hardware Implementation and Market Impacts of Grid-Supportive Functions in End-Use Loads
Hardware Implementation and Market Impacts of Grid-Supportive Functions in End-Use Loads Open
Grid-supportive loads (GSLs) are power electronics-based end-use loads that can provide frequency response and other grid services by autonomously adjusting their output power using local grid measurements. This report provides details on …
View article: Natural Gas Community of the Future (Final Report)
Natural Gas Community of the Future (Final Report) Open
Nicor Gas, a subsidiary of Southern Company Gas and its parent company Southern Company, is developing the concept of the Carbon-neutral, Affordable, Resilient, and Equitable Community ("CARE Community") to address the challenges of access…
View article: Savings in Action: Lessons from Observed and Modeled Residential Solar Plus Storage Systems [Slides]
Savings in Action: Lessons from Observed and Modeled Residential Solar Plus Storage Systems [Slides] Open
The study performed two related analyses using data from a new-construction residential community equipped with rooftop solar and storage (S+S) in Arizona. The study analyzed the factors that determine customer electricity cost savings fro…
View article: Assessing the Technical Potential of Fast Frequency Response in Grid-Supportive Loads
Assessing the Technical Potential of Fast Frequency Response in Grid-Supportive Loads Open
Fast frequency response (FFR) is a critical tool for grid operators to manage contingency events in low-inertia systems. While large generators and loads are more commonly used, many smaller end use loads, in aggregate, can provide FFR acr…
View article: Zero Export Feeder Through Transactive Markets
Zero Export Feeder Through Transactive Markets Open
This project is aimed at creating a transactive energy market to address the challenges faced by utility providers when increasing distributed energy resource (DER) adoption in their service area. One major challenge is mitigating export b…
View article: Savings in Action: Lessons from Observed and Modeled Residential Solar Plus Storage Systems
Savings in Action: Lessons from Observed and Modeled Residential Solar Plus Storage Systems Open
The electric grid is rapidly evolving as small-scale, demand-side resources play increasingly important roles in grid operations and decarbonization. Maximizing the potential of demand-side resources involves incentivizing electricity cust…
View article: A Network-Aware Distributed Energy Resource Aggregation Framework for Flexible, Cost-Optimal, and Resilient Operation
A Network-Aware Distributed Energy Resource Aggregation Framework for Flexible, Cost-Optimal, and Resilient Operation Open
To efficiently use the ubiquitous behind-the-meter distributed energy resources (DERs) in distribution systems for providing grid services, this paper presents a hierarchical control framework for DER optimal aggregation and control. We fi…
View article: Sensitivity Analysis of Occupant Preferences on Energy Usage in Residential Buildings
Sensitivity Analysis of Occupant Preferences on Energy Usage in Residential Buildings Open
Residential buildings, accounting for 37% of the total electricity consumption in the United States, are suitable for demand response (DR) programs to support effective and economical operation of the power system. A home energy management…
View article: Incorporating Residential Smart Electric Vehicle Charging in Home Energy Management Systems: Preprint
Incorporating Residential Smart Electric Vehicle Charging in Home Energy Management Systems: Preprint Open
Electric vehicles are expected to drastically increase residential electricity consumption and provide a significant source of flexible demand. Aggregating smart EV charge controllers with other smart home devices through a home energy man…
View article: Battery Control Using Stochastic Model Predictive Control
Battery Control Using Stochastic Model Predictive Control Open
Stationary batteries in residential and commercial buildings are often used to smooth customer load profiles and to lower customer electricity bills. Controllers for these battery systems should account for customer energy consumption, rat…
View article: Incorporating Residential Smart Electric Vehicle Charging in Home Energy Management Systems
Incorporating Residential Smart Electric Vehicle Charging in Home Energy Management Systems Open
Electric vehicles (EVs) are expected to drastically increase residential electricity consumption and could provide a significant source of flexible demand. Aggregating smart EV charge controllers with other smart home devices through a hom…
View article: Virtual Battery Aggregator (Virtual Battery Aggregator for Distributed Energy Resource Management Systems)
Virtual Battery Aggregator (Virtual Battery Aggregator for Distributed Energy Resource Management Systems) Open
Distributed energy resource management systems (DERMS) are being deployed in feeders with high distributed energy resource (DER) penetration to provide visibility of DERs and enable DER control strategies for grid operators. DERMS can supp…
View article: Time-of-Use and Demand Charge Battery Controller Using Stochastic Model Predictive Control: Preprint
Time-of-Use and Demand Charge Battery Controller Using Stochastic Model Predictive Control: Preprint Open
Stationary batteries in residential and commercial buildings are often used to smooth customer load profiles and to lower customer electricity bills. Controllers for these battery systems should account for customer energy consumption, rat…
View article: Performance Evaluation of Distributed Energy Resource Management via Advanced Hardware-in-the-Loop Simulation
Performance Evaluation of Distributed Energy Resource Management via Advanced Hardware-in-the-Loop Simulation Open
This poster provides an overview of the performance evaluation of distributed energy resource management via advanced hardware-in-the-loop simulation.
View article: Advanced Inverter Voltage Controls: Simulation and Field Pilot Findings
Advanced Inverter Voltage Controls: Simulation and Field Pilot Findings Open
This report describes work performed by the Hawaiian Electric Companies and the National Renewable Energy Laboratory (NREL) to model and simulate advanced inverter grid-support functions and to validate and expand on those simulations thro…