Energy Performance Contracting Methodology Based upon Simulation And Measurement

Abstract

Discrepancies between ex-ante energy performance assessment and actual consumption of buildings hinder the development of energy performance contracting (EPC). To address this issue, uncertainty integration in simulation as well as measurement and verification (M&V) strategies have been studied. In this article, we propose a methodology, combining detailed energy performance simulation and M&V anticipation. Statistical studies using Monte-Carlo analysis allow a guaranteed consumption limit to be evaluated according to a given risk. Adjustment and verification procedures are also derived from the simulation results in relation to an optimised measurement plan. The complete process has been tested on a refurbishment project allowing the decrease of the difference between the guaranteed consumption limit and the reference energy consumption from 25 % to 15 % of reference consumption.

Dealing with uncertainties in comparative building life cycle assessment

“…In both case, the approach consists in generating a diversity of realistic scenarios (climates or occupancy), and randomly sampling from the generated scenarios for each simulation. A sample of meteorological years is generated by applying the model of Ligier et al [80,81]. The temperature and radiation of a typical meteorological year are characterised into a mean trend and a residual series, using a Fourier decomposition and a seasonal auto-regressive moving average model.…”

Evaluation and Design of Parameterized Dynamic Daylighting for Large-Space Buildings

“…This is conducted in order to realize the evaluation of program performance and to provide the decisions for program design and optimization at the same time. Experts and scholars, such as Manfren [56], Kotireddy [57], Biloria [58], Lin [59], Sun [60] and Ligier [61], have carried out numerous studies and have completed manifold practices in terms of parametric performance analysis. On the basis of the idea of parametric performance design analysis, the parametric dynamic lighting design and analysis evaluation process is proposed in this study (Figure 1).…”