Cost Benefit

Cleaning PV panels becomes economical at an energy value of about $0.25/kWh [black horizontal line] (Kimbler, 2006). All rate schedules for Maui are above this Cost/Benefit threshold. This data for Maui is from MECO “Consumer Lines” Volume XXX, No.5.
Literature Cited; A. Kimbler, I. Mitchell, S. Nogradi, H. Wenger. The effect of soiling on photovoltaic systems in arid climates, Proceedings of the 4th World Conference on Photovoltaic Energy Conversion, Waikoloa, Hawaii, USA. May 7-12 2006.