Honeywell, Tata Power deploy smart grid project to improve energy reliability

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Honeywell and Tata Power Delhi Distribution implemented an automated demand response (ADR) project for commercial and industrial facilities in India.

TPDDL is using Honeywell technology and services to link more than 160 buildings in its distribution network, and call for temporary reductions in energy use when demand threatens to outpace supply.

This includes power management during periods of peak consumption, as well as other grid emergency situations. Automated demand response gives the grid operator a new, domestic resource to help alleviate stress on transmission and distribution lines, and improve supply efficiency.

Given the gap between the power required for homes and businesses in India, and what utilities can produce, many cities across the country face severe brownouts and blackouts. The demand for electricity in Delhi, for example, has almost doubled over the past decade.

With nearly 50 percent of the country’s peak load tied to commercial and industrial sites, the ability to adjust related energy use is critical. Grid operators like TPDDL can use ADR to help reduce peak load in a facility 15 percent on average, creating a “virtual power plant” that generates “negawatts” or reduced demand.

The project will give TPDDL the ability to reduce about 11.5 MW of peak demand. However, if the same technology were deployed in all buildings in India, electricity consumption could drop an estimated 10.5 gigawatts, close to 7 percent of the peak energy currently required nationwide.

High-end commercial and industrial consumers in the TPDDL territory with individual connected load of more than 100 kilovolt-amps (kVA) volunteered for the project. As they signed up, Honeywell and TPDDL conducted site audits, and worked with the building owners and operators to identify and implement changes to help temporarily trim consumption. Conservation measures include turning off commercial and industrial loads like banks of motors, pumps, fans and condensers for a short period.

TPDDL is using Honeywell’s Akuacom software as a service (SaaS) and smart meters to communicate with the building systems at the participating sites, and automatically apply the load-shed measures when the grid is overburdened.

By participating, commercial and industrial customers can cut their energy use and costs without compromising operations. The collective decrease in consumption gives the grid operator more tools to balance supply and demand, and help avoid power disruptions.

In addition, ADR helps reduce greenhouse gas emissions and the need to run expensive peaking plants, which typically sit idle until customers require more electricity than the utility is able to provide using its primary, base-load generators.

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