How Demand Response Spurs Generator Upgrades to Reduce NOx Emissions
Fri, 20th Sep 2024

Advancing Air Quality: How Demand Response Spurs Generator Upgrades to Reduce NOx Emissions

The Role of Backup Generators in Power Reliability

Backup generators are essential for ensuring uninterrupted power supply during grid outages, but their operation often comes at a cost to local air quality due to high NOx emissions. However, with the introduction of demand response initiatives, there is a growing opportunity to promote the upgrade of site generators, reducing their environmental impact and contributing to cleaner air.

The Environment Challenge – Unabated Emissions

Currently, many backup generators operate unabated, meaning they lack exhaust clean-up equipment to mitigate emissions of pollutants into the atmosphere. Among these pollutants, NOx emissions from diesel generators are particularly concerning due to their negative effects on air quality and human health.

Regulatory Measures and Compliance Standards

To address this issue, regulatory measures such as the Medium Combustion Plant Directive have been implemented. From October 1st, 2026, sites with generators installed after December 2018 must comply with emissions limits outlined in the directive to participate in the Capacity Market. This necessitates the retrofitting of generators with advanced secondary abatement equipment, such as Selective Catalytic Reduction (SCR) systems, to reduce NOx levels.

Demand Response, a Win-Win for Site Operators and the Environment

While the capital investment required for these upgrades may seem daunting, demand response programs offer a compelling solution. By participating in demand response initiatives, sites can generate additional revenues that more than cover the costs of retrofitting their generators with SCR systems. This financial incentive makes the transition to cleaner, compliant generators a feasible and attractive option for site operators.

Upgrading generators to meet the latest environmental emissions standards aligns with a site’s commitment to sustainability and environmental responsibility. By leveraging demand response to offset the capital investment, sites can demonstrate their dedication to maintaining the highest environmental standards while ensuring reliable backup power supply. The synergy between demand response and generator upgrades presents a win-win scenario for both site operators and the environment.

Understanding this context, VIOTAS has introduced the VIO Flex GRID, a new solution designed to offer up to 12 years of guaranteed revenues through enhanced demand response programs. VIO Flex GRID enables participants to tap into the highest demand side market revenues while supporting the integration of renewable energy sources into the grid. Participants also have the option to secure their operational stability at no cost with funded generators, making it an even more attractive proposition for those looking to upgrade their systems and maintain reliability.

Key benefits of VIO Flex GRID
Key benefits of VIO Flex GRID

Demand response plays a pivotal role in promoting the upgrade of backup generators to reduce NOx emissions and mitigate their impact on local air quality. By embracing this opportunity, sites can align with regulatory requirements, enhance their environmental stewardship, and contribute to a healthier, cleaner future for all.


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