Journal Papers
- S. Bhattarai, R. Karki, P. Piya, 2019. Reliability Modeling of Compressed Air Energy Storage for Adequacy Assessment of Wind Integrated Power System, IET Generation, Transmission & Distribution, DOI: 10.1049/iet-gtd.2019.0179, online Aug 19, 2019.
- S. Bhattarai, R. Karki, P. Piya, 2019. Reliability and Economic Assessment of Compressed Air Energy Storage in Transmission Constrained Wind Integrated Power System, Elsevier Journal of Energy Storage, Vol. 25, 100830, https://doi.org/10.1016/j.est.2019.100830.
- N. Nepal, R. Karki, 2019. Quantifying Power System Operational Reliability, Applied Sciences, Appl. Sci. 2019, 9(14), 2777; https://doi.org/10.3390/app9142777.
- P. Gautam, R. Karki, P. Piya, 2018. Probabilistic Modeling of Energy Storage to Quantify Market Constrained Reliability Value to Active Distribution Systems, IEEE Trans. Sustainable Energy, DOI: 10.1109/ TSTE.2019.2917374, online.
- S. Adhikari, R. Karki, P. Piya, 2019. Recovery Risk Mitigation of Wind Integrated Bulk Power System with Flywheel Energy Storage, IEEE Trans. Power Systems, 34(5), p. 3484 - 3493.
- T. Shrestha, R. Karki, 2018. Quantifying Energy Storage Augmented Capacity Value of Wind Generation in Electricity Market. International Journal of Smart Grid and Clean Energy, 2018
- S. Adhikari, R. Karki, P. Piya, 2018. Integrated Disturbance Response Modelling of Wind Integrated Power Systems to Quantify the Operational Reliability Benefits of Flywheel Energy Storage, IEEE Trans. Sustainable Energy, 10(3), 1152 – 1160.
- M. Padhee, R. Karki, 2018. Bulk System Reliability Impacts of Forced Wind Energy Curtailment, AIMS Energy, 2018, 6(3), 505–520.
- A. Alferidi, R. Karki, 2017. Development of Probabilistic Reliability Models of Photovoltaic System Topologies for System Adequacy Evaluation, Applied Science, 2017, 7(2), 176; doi:10.3390/app7020176.
- S. Miao, K. Xie, H. Yang, R. Karki, H. Tai, T. Chen, 2016. A Mixture Kernel Density Model for Wind Speed Probability Distribution Estimation, Energy Conversion and Management, Elsevier, 126 (2016), pp. 1066–1083.
- M. Padhee, R. Karki, 2016. RELIABILITY/ENVIRONMENTAL IMPACTS OF WIND ENERGY CURTAILMENT DUE TO RAMPING CONSTRAINTS, International Journal of Systems Assurance Engineering and Management, Springer, DOI :10.1007/s13198-016-0521-4.
- X. Wang, R. Karki, 2016. Exploiting PHEV to Augment Power System Reliability, IEEE Transactions on Smart Grid, doi: 10.1109/TSG.2016.2515989, pp.1-9.
- S. Thapa, R. Karki, 2015. Reliability Benefit of Energy Storage in Wind Integrated Power System Operation, IET Generation, Transmission & Distribution, doi: 10.1049/iet-gtd.2015.0162, pp.1-8.
- D. Dhungana, R. Karki, 2014. Data Constrained Adequacy Assessment for Wind Resource Planning, IEEE Transactions on Sustainable Energy, 6(1), 219-227.
- R. Jansen, R. Karki, 2015. Development of a smart micro-grid management system, International Journal on System Assurance Engineering and Management, Springer, 6(2),110–118.
- S. Thapa, R. Karki, R. Billinton, 2013. Utilization of the Area Risk Concept for Operational Reliability Evaluation of a Wind-Integrated Power System, IEEE Transactions on Power Systems, 28(4), 4771-4779.
- R. Karki, D. Dhungana, R. Billinton, 2013. An Appropriate Wind Model for Wind Integrated Power Systems Reliability Evaluation Considering Wind Speed Correlations, Applied Sciences, 2013, 3, 107-121, Feb 2013.
- R. Karki, S. Thapa and R. Billinton, 2012. A Simplified Risk-Based Method for Short-Term Wind Power Commitment, IEEE Transactions on Sustainable Energy, 3(3), 498 - 505.
- R. Karki, S. Thapa and R. Billinton, 2012. Operating Risk Analysis of Wind-integrated Power Systems, Electric Power Components and Systems, Taylor & Francis, 40:4, 399-413.
- R. Billinton, R. Karki, Y. Gao, D. Huang, P. Hu, W. Wangdee, 2012. Adequacy Assessment Considerations in Wind Integrated Power Systems, IEEE Transactions on Power Systems, 27(4), 2297-2305, Nov. 2012.
- R. Billinton, Y. Gao, and R. Karki, 2012 “Adequacy assessment of generating systems containing wind power considering wind speed correlation,” IET Renew. Power Gen., vol. 3, no. 2, pp. 217–226, 2012.
- R. Karki, P. Huand R. Billinton, 2010. Reliability evaluation considering wind and hydro power coordination, IEEE Trans. on Power Systems, 25(2), 685-693.
- R. Billinton, Y. Gao and R. Karki, 2010. Application of a joint deterministic-probabilistic criterion to wind integrated bulk power system planning, IEEE Trans. on Power Systems, 25(3), 1384-1392.
- R. Billinton and R. Karki, 2010. Incorporating wind power in generating system reliability evaluation, International Journal of Systems Assurance Engineering and Management, Springer, 1(2), 120-128.
- N. Karki, R. Karki, A.K. Verma, 2010. Estimation of cost of unserved energy: A customer survey approach, International Journal of Systems Assurance Engineering and Management, Springer, 1(2), 157-162.
- N. Karki, R. Karki, A. K. Verma, D. Jha and J. Shrestha, 2010. Commercial customers electricity supply outage cost estimation in a developing country, Communication in Dependability Quality and Management, SCIndeks, 13(4), 48-58.
- K. Xie K., B. Hu and R. Karki, 2010. Tracing the component unreliability contributions and recognizing the weak parts of a bulk power system, European Transactions on Electrical Power, Wiley, 21(1), 254-262.
- P. Hu, R. Karki and R. Billinton, 2009. Reliability evaluation of generating systems containing wind power and energy storage, IET Generation, Transmission & Distribution, 3(8), 783–791.
- N. Karki, A.K. Verma, R. Karki and A. Mishra, 2009. Residential customers’ outage cost analysis for urban and semi-urban areas in a developing country, International Journal of Reliability, Quality And Safety Engineering, World Scientific, 16(6), 581-593.
- R. Karki, J. Patel, 2009. Reliability Assessment of a Wind Power Delivery System, Journal of Risk and Reliability, Proceedings of the Institution of Mechanical Engineers, 223(1), 51-58.
- R. Billinton, Y. Gao and R. Karki, 2009. Composite System Adequacy Assessment Incorporating Large-Scale Wind Energy Conversion Systems Considering Wind Speed Correlation, IEEE Trans. on Power Systems, 24(3), 1375-1382.
- R. Billinton, B. Karki, R. Karki and R. Gokaraju, 2009. Unit Commitment Risk Analysis of Wind Integrated Power Systems, IEEE Trans. on Power Systems, 20(2), 930-939.
- R. Karki, 2008. Renewable Energy Credit Driven Wind Power Growth for System Reliability, Electric Power Systems Research, Elsevier, 77(7), 797–803.
- Y. Ding, P. Wang, L. Goel, R. Billinton and R. Karki, 2007. Reliability Assessment of Restructured Power Systems Using Reliability Network Equivalent and Pseudo-sequential Simulation Techniques, Electric Power Systems Research, Elsevier,77(12), 1665-1671.
- R. Karki, P. Hu and R. Billinton, 2006. A Simplified Wind Power Model for Reliability Evaluation, IEEE Trans. on Energy Conversion, 21(2), 533-540.
- R. Karki, 2006. Reliability Focused and Market Driven Growth of Wind Power in Electric Power Systems, International Review of Electrical Engineering, Praise Worthy, 1(1), 170-177.
- R. Karki and R. Billinton, 2006. Impact of Renewable Energy Unit Availability on Power System Adequacy, International Journal of Power and Energy Systems, ACTA Press, 26(2), 147-152.
- R. Karki and R. Billinton, 2004. Cost Effective Wind Energy Utilization for Reliable Power Supply, IEEE Trans. on Energy Conversion, 19(2), 435-440.
- R. Billinton andR. Karki, 2003. Reliability/Cost Implications of PV Energy Utilization in Small Isolated Power Systems, Journal of Reliability Engineering and System Safety, 79(1), 11-16.
- R. Karkiand R. Billinton, 2001. Reliability/Cost Implications of PV and Wind Energy Utilization in Small Isolated Power Systems, IEEE Transactions on Energy Conversion, 16(4), 368-373.
- R. Billinton andR. Karki, 2001. Maintaining Supply Reliability of Small Isolated Power Systems Using Renewable Energy, IEE Proceedings – Generation, Transmission and Distribution, 148(6), 530-534.
- R. Billinton and R. Karki, 2001. Capacity Expansion of Small Isolated Power Systems Using PV and Wind Energy, IEEE Transactions on Power Systems, 16(4), 892-897.
- R. Karkiand R. Billinton, 2000. Reliability/Cost Implications of Utilizing Wind Energy in Small Isolated Power Systems, Wind Engineering, 24(5), 379-388.
- R. Billinton and R. Karki, 1999. Application of Monte Carlo Simulation to Generating System Well-Being Analysis, IEEE Transactions on Power Systems, 14(3), 1172-1177.
- R. Billinton and R. Karki, 1999. Capacity Reserve Assessment Using System Well-Being Analysis, IEEE Transactions on Power Systems, 14(2), 433-438.
- R. Billinton and R. Karki, 1999. Capacity Planning in Small Isolated Power Systems Using Probabilistic Methods, IEE Proceedings – Generation, Transmission and Distribution, 146(1), 61-64.
Books
- N. Karki, R. Karki, A.K. Verma, J. Choi. Sustainable Power Systems: Modelling, Simulation and Analysis. Springer, ISSN: 2510-2524.
- R. Karki, R. Billinton, A.K. Verma, 2014. Reliability Modeling and Analysis of Smart Power Systems. Springer, ISBN 978-81-322-1798-5.
- R. Billinton, R. Karki, A.K. Verma, 2013. Reliability and Risk Evaluation of Wind Integrated Power Systems. Springer, ISBN 978-81-322-0986-7.
- Complete Publications of Roy Billinton
Chapters in Books
- R. Karki, Reliability of Renewable Power Systems, Chapter in Encyclopedia of Sustainable Technologies, Elsevier, (in progress).
- R. Jansen, R. Karki, Sustainable Energy Optimization in a Smart Microgrid, Chapter in Sustainable Power Systems: Modelling, Simulation and Analysis. Springer, (in progress).
- X. Wang, R. Karki, Reliability Assessment of Power Grid Supporting Sustainable Transportation, Chapter in Sustainable Power Systems: Modelling, Simulation and Analysis. Springer, (in progress).
- V. V. Vadlamudi, R. Karki, G. H. Kjolle, K. Sand, 2014. Reliability-Centric Studies in Smart Grids: Adequacy and Vulnerability Considerations, Chapter 1 of Reliability Modeling and Analysis of Smart Power Systems, Springer, Page 1-15, ISBN 978-81-322-1798-5
- S. Thapa, R. Karki, R. Billinton, 2013. Application of Hourly Time Series Models in Day Ahead Wind Power Commitment, Chapter 4 of Reliability and Risk Evaluation of Wind Integrated Power Systems. Springer, ISBN 978-81-322-0986-7.
- R. Billinton, Y. Gao, D. Huang, R. Karki, 2011. Adequacy Assessment of Wind-Integrated Composite Generation and Transmission Systems, Chapter 4, Innovations in Power Systems Reliability, Edited by Anders, George; Vaccaro, Alfredo, Springer, London, UK, 141-168.
Expository and Review Articles
- R. Billinton, A. K. Verma, R. Karki, 2010. Editorial for the Speical Issue on “Critical Challenges and Practices for Reliability Assurance of Power Systems”, International Journal of Systems Assurance Engineering and Management, Springer, 85-86.
- R. Karkiand R. Billinton, 2007. “Reliability Evaluation of the Whitehorse-Aishihik-Faro System and Reliability Assessment of the WAF System Using 1996-97 System Data”, YUB Report to Commissioner in Executive Council re YEC 20-Year Resource Plan, (Exhibit B-6).
Technical Reports
- R. Karki, M. Padhee, July 2014, Wind Energy Utilization and Reliability Assessment of the SaskPower System Considering Wind Diversity, Report for SaskPower, Funded by NSERC CRD Grant, (31 pages).
- R. Karki, June 2014, A Reliability Study of 500 kV Transmission Facility Groups, Report for ATCO Electric Funded by Industry, (45 pages).
- R. Jansen, A. Islam, R. Karki, Jan 2014, Development of a Smart Microgrid Management System, Report for Check-It Solutions, Funded by NSERC Engage Grant, (30 pages).
- R. Karki, D. Dhungana, June 2013, Reliability Evaluation of the SaskPower System Considering Regional Wind Power Integration, Report for SaskPower, Funded by NSERC CRD Grant, (133 pages).
- R. Karki and R. Billinton, Aug. 2011. Analyses of Transmission Constraints on Generation Adequacy Models for the Yukon Energy Corporation, Report for Yukon Energy Corporation, Funded by Industry, (74 pages).
- R. Karki and R. Billinton, June 2011. Generation Adequacy Sensitivity Studies on the SaskPower System, Report for SaskPower, Funded by Industry, (108 pages).
- R. Karki and R. Billinton, March 2011. Basic Generation Adequacy Evaluation of the SaskPower System, Report for SaskPower, Funded by Industry, (59 pages).
- R. Billinton and R. Karki, Dec. 2009. A Proposed Reliability Framework for SaskPower, Report for SaskPower, Funded by Industry, (15 pages).
- R. Karki, Dec. 2006. "WAFSREL – User's Manual" for WAFSREL software developed for the Yukon Energy Corporation, Funded by Industry, (30 pages).
- R. Karki and R. Billinton, July 2005. Reliability Assessment of the WAF System Using 1996-97 System Data, Report for Yukon Energy Corporation, Funded by Industry, (12 pages).
- R. Karki and R. Billinton, February 2005. Reliability Evaluation on the Whitehorse-Aishihik-Faro System, 60 pages technical report for the Yukon Energy Corporation.
- R. Karki, October 2003. Reliability Study for the Turks and Caicos Islands, 7 pages report on preliminary reliability studies for the Turks and Caicos Islands Electrical Power Generating System.