Evaluation of energy efficiency projects
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This document discusses pre-installation impact evaluation of industrial energy efficiency projects. The key advantages are better evaluation quality, realization rates, and fewer surprises due to early evaluator involvement in project engineering review, baseline characterization, and pre-installation metering. Potential costs include additional labor and calendar delays. The document provides examples of how pre-installation evaluation works in practice and case studies with both benefits and challenges.
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Nepal’s access to energy and modern energy services is inadequate and the use of energy is inefficient. The electrical power supply is characterized by scheduled power interruption up to 16 hours daily. The insufficient and interrupted supply of electricity affects industrial production negatively and forces more and more industrial and commercial enterprises to generate their own electricity generally by means of diesel generators. Over the last year its development has led to the increased import of petroleum products contributing to an increased trade balance deficit. Furthermore, the additional burning of fossil fuels results in higher emissions of climate change relevant and environmentally harmful pollutants.
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[JPP-1] - (JEE 3.0) - Kinematics 1D - 14th May..pdf
6th International Conference on Machine Learning & Applications (CMLA 2024)
6th International Conference on Machine Learning & Applications (CMLA 2024)
Evaluation of energy efficiency projects
- 1. Main Headquarters: 120 Water Street, Suite 350, North Andover, MA 01845 With offices in: NY, ME, TX, CA, OR www.ers-inc.com PRE-INSTALLATION EVALUATION OF INDUSTRIAL PROJECTS Jonathan B. Maxwell and Betsy Ricker, ERS Carley Murray, NYSERDA* *Any opinions expressed, explicitly or implicitly, are those of the authors and do not necessarily represent those of the New York State Energy Research and Development Authority
- 2. IEPEC Chicago August 2013 Pre-Installation Evaluation of Industrial Projects Jonathan B. Maxwell and Betsy Ricker, ERS Carley Murray, NYSERDA* *Any opinions expressed, explicitly or implicitly, are those of the authors and do not necessarily represent those of the New York State Energy Research and Development Authority
- 3. OBJECTIVES Primary Discuss methods, advantages, and disadvantages of very early impact evaluator involvement in a large industrial process program Also share Procedure Case studies of pre-retrofit activity
- 4. WHAT IS PRE-INSTALLATION IMPACT EVALUATION? Core activity: Project engineering review before savings claims are finalized Pre-installation savings calculation review Baseline characterization Pre-installation metering Also/possibly: Early free ridership assessment Early post-retrofit review & metering Training PA and their technical advisors
- 5. WHY DO IT? Benefits for evaluators Evaluator inspection in pre-retrofit state Input regarding administrator M&V plan • Opportunity for independent direct M&V Baseline perspective at time of decision- making Evaluator-administrator convergence/training Bottom Line: Increased engineering rigor less variability, greater confidence in results
- 6. WHY DO IT? Benefits for program administrators Evaluator-administrator convergence/training Adjustment to savings estimates prior to incentive calculation Increased depth of engagement with facilitators Less disturbance to customers Bottom line: Better realization rates Fewer surprises
- 7. WHY NOT DO IT? Added cost for evaluators and administrators Planning $2k to $10k per project evaluator cost; less but some admin • Modest ex post savings later Sunk evaluation costs on projects that don’t matriculate Monthly meetings Risks added calendar time to processing Short notice rush analysis required Baseline can require research. Admin waits? Added bureaucracy before closing the deal
- 8. HOW IT WORKS ID candidate projects Evaluator review Evaluator & administrator meet on analysis, baseline, and proposed pre- installation metering. Pre-install site visit. Possible metering Existing facility New facility Evaluation review memo Evaluator & administrator meet Post-install site visit Tracking
- 9. HOW IT WORKS – SCREENING Establish screening criteria in advance Example: All over 5 GWh/yr or 10,000 MMBtu/yr All over intermediate size range and process, complex baseline, capacity expansion, controls, etc Sample others in intermediate range Evaluator or administrator can ID projects
- 10. HOW IT WORKS - VARIATIONS Are early evaluator findings advisory or definitive to program? Is free ridership assessed? Is result shared? Is it considered when setting incentives? Formality of communication Who does the M&V?
- 11. CASE STUDIES Paper includes four case studies Good Working together on M&V approach Evaluator influencing administrator on baseline characterization, and vice versa Bad Lost sunk costs No consensus on baseline Timing challenges
- 12. SUMMARY PRE-INSTALLATION IMPACT EVALUATION Advantages: Better evaluation engineering & statistical quality Better realization rates Fewer bad surprises at end of evaluation Costs: More labor Calendar concerns
Editor's Notes
- Early timely free ridership assessment (not NYSERDA scope) “Greater confidence” in both engineering (believe in site analysis) and statistical (lower variability and better relative precision) contexts.
- “Better” means “bigger” for PAs, or at least “closer to 1.0.”
- $6k NYSERDA impact evaluator & 40-hr budget. Running high so far. Horror stories (ref CPUC Lockheed panel)
- For NYSERDA the administrator IDs. Know at least one other jurisdiction where the evaluator has the responsibility
- NYSERDA: Advisory, no, no, no, moderately formal, administrator for the most part CPUC: Definitive, yes, yes, no, formal, administrator for the most part OPA: Unknown, yes, yes, yes, unknown, evaluator
- Ex 1: Condensing economizer in ethanol plant. Lost 90% of savings due to noncompletion of boiler. Lost sunk cost & early ID on lost method—billing analysis no longer viable Ex 2: Chemical distillation. Admin convincing evaluators that added M&V was not worthwhile Ex 3: Beverage bottling: Evaluators not made aware of project until virtually the installation date (administrators had short notice as well) Ex 4: Data center: Baseline characterization