Time filter

Source Type

Chicago, IL, United States

Pavlak G.S.,University of Colorado at Boulder | Henze G.P.,University of Colorado at Boulder | Cushing V.J.,QCoefficient

In order to achieve a sustainable energy future, advanced control paradigms will be critical at both building and grid levels to achieve harmonious integration of energy resources. This research explores the potential for synergistic effects that may exist through communal coordination of commercial building operations. A framework is presented for diurnal planning of multi-building thermal mass and HVAC system operational strategies in consideration of real-time energy prices, peak demand charges, and ancillary service revenues. Optimizing buildings as a portfolio achieved up to seven additional percentage points of cost savings over individually optimized cases, depending on the simulation case study. The magnitude and nature of synergistic effect was ultimately dependent upon the portfolio construction, grid market design, and the conditions faced by buildings when optimized individually. Enhanced energy and cost savings opportunities were observed by taking the novel perspective of optimizing building portfolios in multiple grid markets, motivating the pursuit of future smart grid advancements that take a holistic and communal vantage point. © 2015 Elsevier Ltd. Source

QCoefficient | Entity website

QCos software as a service (SaaS) platform features an automated, scalable, energy-optimization system that exploits the thermal mass of commercial office buildings to make buildings more energy efficient. QCo essentially turns buildings into batteries capable of energy storage on a multi-MW scale ...

QCoefficient | Entity website

QCoefficient Carbon LeadershipQCo selected as a 2015 finalist by Ocean Exchange -- seeking innovative, proactive and globally scalable solutions that support sustainability and that can leap across industries, economies and cultures.The Green Proving Ground Program leverages GSA's real estate portfolio to evaluate innovative sustainable building technologies ...

QCoefficient | Entity website

Case StudiesQCo's energy storage and optimization platform has achieved significant energy and expense savings for large, commercial buildings

Zhao P.,University of Colorado at Boulder | Henze G.P.,University of Colorado at Boulder | Plamp S.,QCoefficient | Cushing V.J.,QCoefficient
Energy and Buildings

The heating, ventilating and air-conditioning (HVAC) systems of large commercial office buildings consume a significant amount of electric power. Instead of passively consuming energy, these systems can provide frequency regulation (FR) services to the electric grid by adjusting the power consumption in response to a signal sent by the electric grid operator. This paper has four primary goals: First, it provides the theoretical support and states the need for using HVAC systems to provide FR. Second, it proposes two methods of using HVAC systems for providing FR - a direct method and an indirect method; these two methods are developed as models and tested in simulation. Third, it addresses the challenges of using commercial building HVAC systems for FR; this motivates the development of a new supervisory control method to support the HVAC system for providing FR service. Fourth, it evaluates the simulated results based on the performance based regulation (PBR) rules proposed by the PJM regional transmission organization; thus, it provides the reference for the future field-testing. © 2013 Elsevier B.V. All rights reserved. Source

Discover hidden collaborations