Evaluating sustainable retrofits in existing buildings under uncertainty

Abstract This paper presents a quantitative approach to determining the value of the investment in sustainable retrofits for existing buildings by taking into account different uncertainties associated with the life cycle costs and perceived benefits of the investment. To achieve this objective, principles from modern option pricing theory in finance are used to augment the traditional net present value method. In particular, an analogy between investment in sustainable building retrofits and American option is established and used to develop a framework for single or multi-phase investment evaluation. The parameters of the proposed framework are determined using the capital asset pricing model. The case study example illustrates that the proposed methodology provides the decision maker with managerial flexibility to determine, prioritize and evaluate the required retrofits over time. Retrofit measures that can be implemented without delay are distinguished from those that can be delayed because more information can be obtained in the future, or their implementation is contingent on successfully implementing other retrofit measures first.

[1]  J. Hull.  Options, futures, and other derivative securities , 1989 .

[2]  W. Sharpe.  CAPITAL ASSET PRICES: A THEORY OF MARKET EQUILIBRIUM UNDER CONDITIONS OF RISK* , 1964 .

[3]  T. Luehrman,et al.  Strategy as a portfolio of real options. , 1998, Harvard business review.

[4]  A. Tiwana,et al.  Beyond Valuation: “Options Thinking” in IT Project Management , 2005 .

[5]  Mark Gaterell,et al.  The impact of energy externalities on the cost effectiveness of energy efficiency measures applied to dwellings , 2005 .

[6]  Carol Menassa,et al.  Option Pricing Model to Analyze Cost–Benefit Trade-Offs of ADR Investments in AEC Projects , 2009 .

[7]  Edward Morofsky,et al.  A screening methodology for implementing cost effective energy retrofit measures in Canadian office , 2011 .

[8]  Salwa Mamoun Beheiry,et al.  Examining the Business Impact of Owner Commitment to Sustainability , 2006 .

[9]  William Margrabe.  The Value of an Option to Exchange One Asset for Another , 1978 .

[10]  J. Gough,et al.  Environmental Decision-Making and Lake Management , 1996 .

[11]  Amy S. Rushing,et al.  Energy price indices and discount factors for life-cycle cost analysis - 2009 :: annual supplement to NIST Handbook 135 and NBS Special Publication 709 , 2009 .

[12]  Timothy F.H. Allen,et al.  Applying the principles of ecological emergence to building design and construction , 2003 .

[13]  L. Trigeorgis.  Real options and interactions with financial flexibility , 1993 .

[14]  Pernilla Gluch,et al.  The life cycle costing (LCC) approach: a conceptual discussion of its usefulness for environmental decision-making , 2004 .

[15]  J. Mossin.  EQUILIBRIUM IN A CAPITAL ASSET MARKET , 1966 .

[16]  R. McDonald,et al.  Investment and the Valuation of Firms When There Is an Option to Shut Down , 1985 .

[17]  Hjh Jos Brouwers,et al.  Evaluation of energy performance indicators and financial aspects of energy saving techniques in residential real estate , 2010 .

[18]  P. Tufano,et al.  A real-world way to manage real options. , 2004, Harvard business review.

[19]  Tadj Oreszczyn,et al.  Challenges for energy and buildings research: objectives, methods and funding mechanisms , 2010 .

[20]  G. Villani.  A Monte Carlo approach to value exchange options using a single stochastic factor , 2010 .

[21]  Annie R. Pearce,et al.  Sustainability in Public Facilities: Analysis of Guidance Documents , 2003 .

[22]  John H. Scofield,et al.  Do LEED-certified buildings save energy? Not really… , 2009 .

[23]  Theodoros Theodosiou,et al.  Feasibility of energy saving renovation measures in urban buildings. The impact of energy prices and the acceptable pay back time criterion , 2002 .

[24]  Peng Gao,et al.  A hybrid decision support system for sustainable office building renovation and energy performance improvement , 2010 .

[25]  Robert L. K. Tiong,et al.  NPV-at-Risk Method in Infrastructure Project Investment Evaluation , 2000 .

[26]  Andreas Uihlein,et al.  Options to reduce the environmental impacts of residential buildings in the European Union—Potential and costs , 2010 .

[27]  Nhan Nguyen,et al.  “Green engineering: Defining the principles”— resdts from the sandestin conference , 2003 .

[28]  Kevin Dowd,et al.  Beyond Value at Risk: The New Science of Risk Management , 1998 .

[29]  L. Luccioni,et al.  An Approximate Solution for Perpetual American Option with Time to Build: The Value of Environmental Remediation Investment Projects , 2008 .

[30]  Liang Y Liu,et al.  How to Evaluate and Invest in Emerging A/E/C Technologies under Uncertainty , 2003 .

[31]  P. Wilmott.  The Mathematics of Financial Derivatives , 1995 .

[32]  Stephen R. Petersen,et al.  Life-cycle costing manual for the Federal Energy Management Program , 1996 .

[33]  F. Black,et al.  The Pricing of Options and Corporate Liabilities , 1973, Journal of Political Economy.

[34]  J. Lintner.  THE VALUATION OF RISK ASSETS AND THE SELECTION OF RISKY INVESTMENTS IN STOCK PORTFOLIOS AND CAPITAL BUDGETS , 1965 .

[35]  Craig W. French.  The Treynor Capital Asset Pricing Model , 2003 .

[36]  S. Ross,et al.  Option pricing: A simplified approach☆ , 1979 .

[37]  Frédéric Dalsace,et al.  Brand Magic: Harry Potter marketing”, Harvard Business Review, février 2007, vol. 85, n° 2 , 2007 .

[38]  R. McDonald,et al.  The Value of Waiting to Invest , 1982 .

[39]  S. Rushing,et al.  Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis - April 2006 , 1997 .

[40]  Constantinos A. Balaras,et al.  Energy performance assessment of existing dwellings , 2007 .

[41]  Stewart C. Myers,et al.  Modern Developments in Financial Management , 1977 .

[42]  Virginia H. Dale,et al.  Next Steps for Tools to Aid Environmental Decision Making , 1999 .

[43]  Carol C. Menassa,et al.  Study of Real Options with Exogenous Competitive Entry to Analyze Dispute Resolution Ladder Investments in Architecture, Engineering, and Construction Projects , 2010 .

[44]  L. Trigeorgis.  Real Options: Managerial Flexibility and Strategy in Resource Allocation , 1996 .

[45]  J. Tainter.  Sustainability of complex societies , 1995 .

[46]  Eduardo S. Schwartz,et al.  Investment Under Uncertainty. , 1994 .