http://wardenclyffetower.com/photos/small_scale_solar/picture76.aspxFolds up to carry like a traditional binder, this fold out panel is rated at 15watts and costs about $140. Although that is still over $9/watt it is much cheaper alternative than the rollable thin film panels. Taken from : http://www.innergypower.com/mm5/merchant.mvc?Screen=PROD&Store_Code=INGYPWR&Product_Code=IP15B&Category_Code=PSBPenCommunityServer 2.1 SP2 (Build: 61129.2)