Impact of electricity tariffs on optimal orientation of photovoltaic modules

• DOI: 10.1002/pip.2651
• Publication Date: 2015-07-25T06:45:16Z
• Authors: Joan E. Haysom; Karin Hinzer; David Wright
• Keywords: Liberian dollar

Maximum revenue (or cost saving) from non-tracking photovoltaic (PV) modules used for distributed generation can be achieved by a module orientation that depends on how the electricity tariff varies with time of day and year. Many jurisdictions have real-time market prices large customers, time-dependent tariffs or depend peak demand. This paper quantifies impact such optimal PV using example California, Nevada Ontario, concludes should oriented to west south 28°, 46° 54° respectively. In order focus tariff, results are based simulations constant-efficiency system operating under year-round clear-sky conditions. A generalized relationship between azimuth on- off-peak ratio is also presented. The sensitivity dollar value power generated non-optimal modules. Compared conventional facing tilted at an angle just latitude, demonstrates adds 4–19% revenue/cost savings, potentially affecting economic viability installation. demand components Ontario much more substantial effect optimization resultant revenues (cost savings) than variations in price electricity. Copyright © 2015 John Wiley & Sons, Ltd.