OpenADR (Open Automated Demand Response) is an open-source standardized communication protocol enabling automated demand response between utilities and buildings. Developed by the Lawrence Berkeley National Laboratory and adopted as ASHRAE standard 2030.5, OpenADR allows interoperable communication without proprietary vendor systems. This standard has enabled widespread adoption of automated demand response programs across North America.
Technical Details
OpenADR uses secure internet protocols (HTTP/HTTPS and XMPP) to transmit price signals, load curtailment requests, and event notifications to building management systems. The protocol supports multiple versions including OpenADR 1.0, 2.0a, and 2.0b, with 2.0b being the most current standard. Buildings receive signals indicating price tiers (typically 3-5 levels) or specific demand reduction percentages. Response times are generally 5-15 minutes. ASHRAE 2030.5 specifies OpenADR as the preferred standard for residential and commercial demand response integration.
Implementation Benefits
OpenADR reduces integration costs by eliminating proprietary communication systems. Facilities can participate in multiple utility programs using single communication infrastructure. Standardization improves system reliability and security. Over 1,000 facilities across North America currently participate in OpenADR-enabled programs, generating 10-20% peak demand reductions.