View source for Snow effects on PV Lit review

==previous snow studies==
--[http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6V51-472BN3B-4-2D&_cdi=5773&_user=1025668&_pii=S0927024802003483&_orig=search&_coverDate=05%2F30%2F2003&_sk=999229996&view=c&wchp=dGLzVzz-zSkWb&md5=a26fd1e5409ccf0a56bd6aed0ebc1e71&ie=/sdarticle.pdf Nagano K, Mochida T, Shimakura K, Murashita K, Takeda S. Development of thermal-photovoltaic hybrid exterior wallboards incorporating PV cells in and their winter performances. Solar Energy Materials and Solar Cells 2003 May;77(3):265-282.] Nabeil

Barriers to implementation of PV in japan because of presumed issues with snow cover

Many flat roofs in the area, making it more difficult to integrate PV

Describes the development of a wall mounted PV/Thermal panel

estimation of 10% loss due to snowfall at and angle of 31 degrees, however a 20% is expected for flush mounted panels. 60 degrees are quite small. 

actual installation was at 80 degrees, because of architectural consraints

made 6 variations of the PV hybrid wallboards, measured the IV curve using loading device and multiplecers, recorded only MPP

measured the temperature output of the air passing over the panels

the amorphous were bad because of condensation,

efficiencies based on projected wall areas, not installed panel capacity

thermal outputs at 28C, 37C which provide about hald the daily heating requirements of a well insulated house (60MJ/day)

# Janssen, E., Nixon, D., De Bruyn, S., Amdurski, G. and Hilaire, L.S., Long-term Impacts of Tilt Angle and Mounting Style on Photovoltaic System Snow Losses. https://www.researchgate.net/profile/Erik_Janssen/publication/333488852_Long-term_Impacts_of_Tilt_Angle_and_Mounting_Style_on_Photovoltaic_System_Snow_Losses/links/5cf02b054585153c3da793d3/Long-term-Impacts-of-Tilt-Angle-and-Mounting-Style-on-Photovoltaic-System-Snow-Losses.pdf