Whole Building Assistance

This measure incentivizes building owners to evaluate the effectiveness and efficiency of current building systems for optimal performance. The Hawaii Energy incentive will cover a portion of the commissioning study cost, plus an additional amount based on actual energy savings and peak demand reduction.

Benefits with Whole-Building approach.

Deep versus conventional retrofits Standard energy-efficiency retrofits focus on individual upgrades, like lighting or a new AC/Chiller. These retrofits are simple and fast, but they may miss opportunities for larger energy savings. Deeper retrofits take a whole-building approach and addressing many systems. Conventional retrofits typically result in savings of 15 to 25 percent; recent whole-building retrofits showed 30 to 50 percent savings in a wide range of projects, according to the New Buildings Institute.

 


How do I start?

  1. Pre Work: Review Hawaii Energy rules and requirements. Select an energy auditor/commissioning specialist from one of our Clean Energy Allies or a firm of your choice. Complete and submit Hawaii Energy Business application for pre-approval.
  2. Audit: Once pre-approved by Hawaii Energy, your selected energy auditor/commissioning specialist may proceed with the project
  3. Optimization: For commissioning projects, major facility equipment will be analyzed and calibrated for optimal performance. Facility staff will receive operations and maintenance refresher training provided by the commissioning firm.
  4. Rebates: Hawaii Energy distributes the rebate for the project after reviewing the final audit/commissioning report for completeness.
  5. Follow up: Implement efficiency measures that were identified during the course of the project as having reasonable simple payback periods.

For questions or assistance with your project contact Hoang Tran at

 

 

 

 


WHAT IS RETROCOMMISSIONING?

Retro-commissioning is a process for investigating the mechanical, lighting and control systems of an existing building and identifying operational improvements

 


WHAT IS AN ASHRAE LEVEL 2 AND 3 AUDIT?

  1. ASHRAE Level 2 – Energy Survey and Analysis
    This type of audit identifies all energy conservation measures appropriate for the facility given its operating parameters. A detailed financial analysis is performed for each measure based on implementation cost estimates, site-specific operating cost savings, and the customer’s investment criteria. Sufficient detail is provided to justify project implementation.
  2. ASHRAE Level 3 – Detailed Analysis of Capital Intensive Modifications
    This level of engineering analysis focuses on the potential capital-intensive projects identified in the Level 2 analysis and involves more detailed field data gathering as well as a more rigorous engineering analysis. It provides detailed project cost and savings calculations with the high level of confidence required for major capital investment decisions. This audit alternatively is called a comprehensive audit, detailed audit, or technical analysis audit.

 


WHO IS ELIGIBLE?

The RCx Program is open to HECO commercial customers (e.g., HECO, MECO or HELCO) who operate buildings with the following characteristics:

  • Own or operate a high energy usage facility that has at least 50,000 square feet of conditioned space or that consumes at least 1,000,000 kWh/year
  • For retro-commissioning, building has been in service for at least 2 years and has never been commissioned before. For re- commissioning, it has been at least 5 years since the last commissioning activity.
  • Additional requirements can be found on the Eligibility and Requirements summary sheet.

 


WHAT ARE THE INCENTIVES?

Requires pre-approval and must meet other Program requirements, see corresponding Rules & Requirements for details.

Incentives capped by building square footage as well.

RCX:
  1. 20¢ per sq.ft. of the commissioned facility up to $30,000, but capped at 50% of the Re|Retro- Commissioning cost
  2. Additional 8¢ per kWh saved in the first year

ASHRAE Level 2 Audit*: 5¢ per sq.ft. of the audited facility up to $15,000, but capped at 85% of the audit cost

ASHRAE Level 3 Audit*: 10¢ per sq.ft. of the audited facility up to $25,000, but capped at 85% of the audit cost

*Additional 10% will be applied to projects identified in audits

(Level 2 & 3) and implemented within 2 years of audit completion.


 

 

 

For general information, call (808) 839-8880 or email