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Validating Net Zero Performance Through Energy Modeling

This case study highlights how energy modeling helped validate net zero building performance for a funding requirement while operational data was still being collected. Through predictive modeling and technical documentation, Emerald Built Environments provided the confidence needed to support funding submissions and verify long-term performance goals.

Background Information

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Client Overview

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United Way of Long Island is committed to strengthening communities through programs and facilities that deliver long-term social, economic, and environmental benefits. As part of a renovation project focused on sustainability and operational performance, the organization pursued grant funding that required validation of net zero energy performance.

Project Overview

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Located in Deer Park, New York, the existing 31,000-square-foot facility recently underwent a renovation and includes office space, leased tenant space, and classroom facilities. To support grant funding requirements for net-zero-energy buildings, Emerald Built Environments developed an as-built whole-building energy model to benchmark building performance and validate anticipated energy outcomes.

 

The model evaluated building energy consumption, renewable energy generation, utility costs, and greenhouse gas emissions, providing the documentation needed to support funding applications and demonstrate a pathway toward net zero energy performance.

Energy Modeling in New Building

Key Challenges

Emerald

The project required the team to validate net zero energy performance before complete operational data had been collected. Funding requirements demanded clear, defensible documentation demonstrating that projected renewable energy generation would offset annual building energy consumption.

 

The analysis also needed to provide stakeholders with confidence that modeled performance would align with actual building operations over time.

 

Client's Goals

Emerald
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VALIDATE anticipated net zero building performance

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PROVIDE reviewer-ready documentation

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SUPPORT funding and reporting requirements

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ESTABLISH confidence in long-term operational performance

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QUANTIFY energy, cost, and emissions impacts

Strategies Implemented

Emerald

Emerald developed a comprehensive whole-building energy model that evaluated building energy consumption, renewable energy production, utility costs, and greenhouse gas emissions.

 

The model incorporated projected operating conditions and renewable energy generation to estimate annual building performance and support required reporting metrics.

Innovative Approaches

Emerald

The modeling process provided net zero validation while additional operational data was still being collected. This allowed the project team to move forward with funding documentation and stakeholder reporting without delaying project progress.

Emerald also translated technical modeling outputs into clear, structured documentation suitable for review and approval.

Outcomes

Emerald

Results Achieved

Emerald

The modeling effort successfully demonstrated projected net zero building performance and provided the documentation necessary to support funding requirements.

 

Performance outcomes included:

energy modeling results

Impact on Operations

Emerald

The model provided a reliable framework for validating expected building performance and supporting stakeholder confidence in the project’s sustainability goals.

Environmental Benefits

Emerald

The completed facility later demonstrated operational performance consistent with the modeling assumptions, including net positive energy generation and a reported utility credit of approximately $4,480 after the first year of operation.

CONCLUSION

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This project demonstrates how energy modeling can provide a powerful foundation for validating ambitious sustainability goals. By combining technical expertise with clear documentation and performance analysis, Emerald Built Environments, A Crete United Company, helped United Way of Long Island confidently support funding requirements and verify a pathway toward net zero performance.

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