Integrated simulation of photovoltaic micro-generation and domestic electricity demand: a one-minute resolution open-source model

Domestic photovoltaic generation can partially offset the electricity demand within an individual dwelling. The net demand may be readily estimated on an annual basis, but modelling its import and export with respect to time, is more complex. A key issue is that domestic electricity demand, particularly lighting, is significantly influenced by the outdoor light level, which of course also has a direct effect on photovoltaic generation. Thus, realistic time-step simulation of the net demand requires that the two components are modelled with respect to a common representation of the solar irradiance. This article presents the construction of an integrated model that provides data at a one-minute time resolution, built upon a fully validated high-resolution electricity demand model. An open-source software implementation of the integrated model in VBA within Microsoft Excel is described and is available for free download.

[1]  Gilbert M. Masters,et al.  Renewable and Efficient Electric Power Systems , 2004 .

[2]  M. Thomson,et al.  Network Power-Flow Analysis for a High Penetration of Distributed Generation , 2006, IEEE Transactions on Power Systems.

[3]  M. J. Kearney,et al.  The effect of spectral variations on the performance parameters of single and double junction amorphous silicon solar cells , 2005 .

[4]  J. Widén,et al.  A high-resolution stochastic model of domestic activity patterns and electricity demand , 2010 .

[5]  Gilbert M. Masters,et al.  Renewable and Efficient Electric Power Systems: Masters/Electric Power Systems , 2004 .

[6]  Ian Richardson,et al.  Domestic electricity demand model - simulation example , 2010 .

[7]  J. Munda,et al.  MODELLING OF CLOUDLESS SOLAR RADIATION FOR PV MODULE PERFORMANCE ANALYSIS , 2009 .

[8]  D. Yogi Goswami,et al.  Principles of Solar Engineering , 1978 .

[9]  V. Ismet Ugursal,et al.  Modeling of end-use energy consumption in the residential sector: A review of modeling techniques , 2009 .

[10]  David Infield,et al.  Network power-flow analysis for a high penetration of distributed generation , 2006 .

[11]  M. Thomson,et al.  Integrated domestic electricity demand and PV micro-generation model , 2011 .

[12]  Jukka Paatero,et al.  A model for generating household electricity load profiles , 2006 .

[13]  Jukka Paatero,et al.  Effects of Large-Scale Photovoltaic Power Integration on Electricity Distribution Networks , 2007, Renewable Energy.

[14]  Ian Richardson,et al.  A high-resolution domestic building occupancy model for energy demand simulations , 2008 .

[15]  David Infield,et al.  Domestic lighting: A high-resolution energy demand model , 2009 .

[16]  J. Olseth,et al.  The probability density and autocorrelation of short-term global and beam irradiance , 1992 .

[17]  David Infield,et al.  Domestic electricity use: A high-resolution energy demand model , 2010 .

[18]  Regina Lamedica,et al.  A bottom-up approach to residential load modeling , 1994 .

[19]  K. Steemers,et al.  A method of formulating energy load profile for domestic buildings in the UK , 2005 .

[20]  Melody Stokes.  Removing barriers to embedded generation : a fine-grained load model to support low voltage network performance analysis , 2005 .

[21]  Ian Beausoleil-Morrison,et al.  Synthetically derived profiles for representing occupant-driven electric loads in Canadian housing , 2009 .