Pole and Wire PV Racking: Difference between revisions
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The labor requirements are one day for building the 5 or 10 panel system. Earth anchors are not a robust solution if those are 10" anchors as suggested. Larger ones are far more labor intensive. | The labor requirements are one day for building the 5 or 10 panel system. Earth anchors are not a robust solution if those are 10" anchors as suggested. Larger ones are far more labor intensive. | ||
Summary: looks good on paper, but in practice I have a hard time seeing | Summary: looks good on paper, but in practice I have a hard time seeing wide replication. We could not use this at the OSE headquarters due to wind loads. | ||
NB: Building-integrated design is much more efficient. Racking for the [[Seed Eco-Home PV System]] cost only $320 for 3 kW, or 17%. | NB: Building-integrated design is much more efficient. Racking for the [[Seed Eco-Home PV System]] cost only $320 for 3.4 kW, or 17% or 9 cents per watt. This wire-post proposal is 30 cents/watt - so about 3x as high for the materials. | ||
Latest revision as of 18:29, 21 May 2022
Looks like an easy solution but shortcoming is wind loads, which this idea is specifically not designed for.
https://www.academia.edu/79576956/Low_cost_Pole_and_Wire_Photovoltaic_Racking?email_work_card=title
The labor requirements are one day for building the 5 or 10 panel system. Earth anchors are not a robust solution if those are 10" anchors as suggested. Larger ones are far more labor intensive.
Summary: looks good on paper, but in practice I have a hard time seeing wide replication. We could not use this at the OSE headquarters due to wind loads.
NB: Building-integrated design is much more efficient. Racking for the Seed Eco-Home PV System cost only $320 for 3.4 kW, or 17% or 9 cents per watt. This wire-post proposal is 30 cents/watt - so about 3x as high for the materials.