Life Cycle Cost Analysis: Is it Worth the Effort?

This research paper by Rocky Mountain Institute (RMI) argues that Life Cycle Cost Analysis (LCCA) is a superior financial tool compared to simple payback analysis for evaluating energy efficiency measures (EEMs) in building construction and retrofits. The authors advocate for a comprehensive four-step LCCA process—establishing a baseline, defining EEMs, calculating financial metrics, and bundling measures—to capture synergistic benefits and avoid sub-optimal design choices.

• Simple payback analysis is an incomplete metric for energy-efficiency investments because it only considers capital costs and annual energy savings, ignoring rebates, maintenance savings, and savings that occur beyond the payback period.
• The authors propose a four-step LCCA process to maximize cost savings: establishing the baseline, defining energy efficiency measures (EEMs), calculating financial metrics (such as NPV and IRR), and bundling measures.
• Establishing a baseline for retrofits involves identifying inevitable 'business-as-usual' maintenance and renewal projects. This allows analysts to justify efficiency investments based on the marginal cost increase over a standard replacement rather than the full cost of the equipment.
• Bundling multiple energy efficiency measures allows for 'integrative design,' where synergistic effects can reduce overall heating and cooling loads, leading to the downsizing of mechanical systems and the inclusion of measures that would not be financially viable on their own.
• In a real-world case study of a 20,000 square-feet retail store, the LCCA approach identified a potential 72% saving in annual utility costs and a 26% IRR. Without establishing a baseline, the IRR would have dropped to 19%, and without bundling, utility savings would have fallen to 55%.
• While LCCA requires more effort than simple payback, the authors argue the additional cost is negligible compared to total building life cycle costs, estimating professional design services to be approximately 0.2% of the total cost of ownership.

APA

Buys, A., Bendewald, M., & Tupper, K. (n.d.). Life Cycle Cost Analysis: Is it Worth the Effort? RMI. https://rmi.org/app/uploads/2017/05/RMI_Document_Repository_Public-Reprts_2010-24_LCCA.pdf

Chicago

Buys, Aaron, Michael Bendewald, and Kendra Tupper. Life Cycle Cost Analysis: Is it Worth the Effort? RMI, n.d. https://rmi.org/app/uploads/2017/05/RMI_Document_Repository_Public-Reprts_2010-24_LCCA.pdf.

Wikipedia

{{cite report |last1=Buys |first1=Aaron |last2=Bendewald |first2=Michael |last3=Tupper |first3=Kendra |title=Life Cycle Cost Analysis: Is it Worth the Effort? |publisher=RMI |url=https://rmi.org/app/uploads/2017/05/RMI_Document_Repository_Public-Reprts_2010-24_LCCA.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{buysndlife, author = {Buys, Aaron and Bendewald, Michael and Tupper, Kendra}, title = {{Life Cycle Cost Analysis: Is it Worth the Effort?}}, institution = {RMI}, url = {https://rmi.org/app/uploads/2017/05/RMI_Document_Repository_Public-Reprts_2010-24_LCCA.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }