Impact of roof integrated PV orientation on the residential electricity peak demand
Peak electricity demand has been an issue in the Desert Southwest region of the US, due to extreme summer temperatures. To address this issue, a consortium was formed between the University of Nevada, Las Vegas, Pulte Homes, and NV Energy. An energy efficient residential community was developed by the team in Las Vegas with approximately 200 homes to study substation-level peak reduction strategies. A summer peak reduction of more than 65%, between 1:00PM and 7:00PM, compared to code standard housing developments is the targeted goal of the project. Approximately 50 homes are already built and some are occupied. The energy performances of the homes have been monitored and are presented in this paper. Several peak electric load reduction strategies such as energy efficiency in buildings, roof integrated photovoltaics (PV) and direct load control have been applied. Though all the homes in the developed community are installed with 1.8kWp PV systems, the orientation of the PV system depends on the building orientation. Focus of this paper is to find the impact of PV orientation on the peak load from a building. In addition, different time-of-use (TOU) energy pricing options are offered by the local electrical utility company. Hence it is important to find an optimal pricing option for each building. A computer model has been developed for one of the homes in the new development using building energy simulation code, ENERGY-10. Calculations on the PV orientations have shown that a south and 220° (i.e. 40° west of due south) orientations are economically optimal for homes enrolled to flat electricity pricing schedule and time of use pricing respectively. As predicted by the simulations, the energy efficiency methods in the home have decreased the total annual energy by 38% compared to a code standard home of the same size. Further, the energy efficiency methods in the building coupled with a 220° oriented PV and 1.1°C increase in thermostat temperature for three hours (from 3:00 to 6:00PM) reduced the peak energy demand by 62% compared to a code standard building of the same size. Battery storage is the other option that will be considered in the project at a later time which is expected to carry the project well beyond its peak reduction goals.
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Volume (Year): 92 (2012)
Issue (Month): C ()
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- Florides, G. A. & Tassou, S. A. & Kalogirou, S. A. & Wrobel, L. C., 2002. "Measures used to lower building energy consumption and their cost effectiveness," Applied Energy, Elsevier, vol. 73(3-4), pages 299-328, November.
- Sadineni, Suresh B. & France, Todd M. & Boehm, Robert F., 2011. "Economic feasibility of energy efficiency measures in residential buildings," Renewable Energy, Elsevier, vol. 36(11), pages 2925-2931.
- Kumar, Rakesh & Rosen, Marc A., 2011. "A critical review of photovoltaic–thermal solar collectors for air heating," Applied Energy, Elsevier, vol. 88(11), pages 3603-3614.
- Chow, T.T., 2010. "A review on photovoltaic/thermal hybrid solar technology," Applied Energy, Elsevier, vol. 87(2), pages 365-379, February.
- Gieseler, U.D.J. & Heidt, F.D. & Bier, W., 2004. "Evaluation of the cost efficiency of an energy efficient building," Renewable Energy, Elsevier, vol. 29(3), pages 369-376.
- Li, D.H.W. & Lam, J.C. & Wong, S.L., 2005. "Daylighting and its effects on peak load determination," Energy, Elsevier, vol. 30(10), pages 1817-1831.
- Geller, Howard & Harrington, Philip & Rosenfeld, Arthur H. & Tanishima, Satoshi & Unander, Fridtjof, 2006. "Polices for increasing energy efficiency: Thirty years of experience in OECD countries," Energy Policy, Elsevier, vol. 34(5), pages 556-573, March.
- Zhou, Guobing & Yang, Yongping & Xu, Hong, 2011. "Performance of shape-stabilized phase change material wallboard with periodical outside heat flux waves," Applied Energy, Elsevier, vol. 88(6), pages 2113-2121, June.
- Leckner, Mitchell & Zmeureanu, Radu, 2011. "Life cycle cost and energy analysis of a Net Zero Energy House with solar combisystem," Applied Energy, Elsevier, vol. 88(1), pages 232-241, January.
- Zogou, Olympia & Stapountzis, Herricos, 2011. "Energy analysis of an improved concept of integrated PV panels in an office building in central Greece," Applied Energy, Elsevier, vol. 88(3), pages 853-866, March.
- Lam, Joseph C. & Tsang, C.L. & Li, Danny H.W. & Cheung, S.O., 2005. "Residential building envelope heat gain and cooling energy requirements," Energy, Elsevier, vol. 30(7), pages 933-951.
- Mondol, Jayanta Deb & Yohanis, Yigzaw G & Norton, Brian, 2009. "Optimising the economic viability of grid-connected photovoltaic systems," Applied Energy, Elsevier, vol. 86(7-8), pages 985-999, July.
- Ashok, S. & Banerjee, R., 2003. "Optimal cool storage capacity for load management," Energy, Elsevier, vol. 28(2), pages 115-126.
- Hasnain, Syed Mahmood & Alabbadi, Naif Mohammed, 2000. "Need for thermal-storage air-conditioning in Saudi Arabia," Applied Energy, Elsevier, vol. 65(1-4), pages 153-164, April.
- Tiwari, G.N. & Mishra, R.K. & Solanki, S.C., 2011. "Photovoltaic modules and their applications: A review on thermal modelling," Applied Energy, Elsevier, vol. 88(7), pages 2287-2304, July.
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