Tools & Guides
Automated Demand Response
OpenADR provides a non-proprietary, open standardized DR interface. These standardized interfaces using API (Application Programming Interface) calls allows electricity providers to communicate price and reliability DR signals directly to existing customers using a common language and existing communications such as the Internet.
The CLIR (Client and Logic with Integrated Relay) is a secure, self-configuring Internet relay. The CLIR enables the EMCS to receive OpenADR signals over the Internet. These signals are translated into relay contacts that are sensed by the EMCS.
Audit tools are used to do a first evaluation of a site or facility to determine demand response capabilities, potential energy and peak electrical demand savings, and communication readiness.
Application Manual for Software and Relay-based Hardware Clients: PG&E DBP and CPP DR Programs (Version 2, Release 3)
This manual is intended to introduce and guide Facility Controls Programmers and Technical Coordinators (TC) of available signaling infrastructure from Pacific Gas and Electricity’s (PG&E) Demand Response Automation Server (DRAS) for Automated Demand Response (AutoDR) programs’ day-ahead and day-of event notifications using the Client and Logic with Integrated Relay (CLIR) and DRAS Web Service (WS) Software-Client. These event and price signals constitute services of AutoDR programs such as, Critical Peak Pricing (CPP) and Demand Bidding Program (DBP) and can also be used for automating strategies for “preparation of load reduction” for controlled load reduction. This manual does not cover the Energy Management Control Systems (EMCS) programming and logic as DR strategies to facility’s HVAC, lighting systems, or other controls.
Demand Response Pre-Cooling & Shed Strategy Assessment Models
Small Commercial Tool
The Demand-Limiting Assessment Tool (DLAT) (developed by Purdue University as part of their DRRC activities) evaluates the peak demand reduction, utility cost savings, and comfort impacts associated with the use of building thermal mass for precooling and demand limiting for a limited number of prototypical small commercial buildings. The program performs hourly calculations with fairly detailed models of the buildings and equipment . The tool is geared towards potential end users to allow a quick assessment of the potential for this technology with a minimum number of user inputs.
Large Commercial Tool: DRQAT
The opportunities for demand reduction and cost saving with building demand responsive control vary tremendously with building type and location. The Demand Response Quick Assessment Tool predicts the energy and demand saving, the economic saving, and the thermal comfort impact for various demand responsive strategies. It is based on the most popular feature and capabilities of EnergyPlus. Users of the tool will be asked to enter the basic building information such as types, square footage, building envelope, orientation, utility schedule, etc. The assessment tool will then use the prototypical simulation models to calculate the energy and demand reduction potential under certain demand responsive strategies, such as precooling, zonal temperature set up, and chilled water loop and air loop set points adjustment.
Demand Response Strategy Guide
Demand Response Strategy Guide
The Demand Response Strategy Guide provides an introduction to commercial building HVAC and lighting control strategies and techniques for demand response. The document compiles information from field demonstrations of DR programs in commercial buildings and provides a framework that can be used to categorize potential control strategies.