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I am told by a local authority their tender is generic and performance based. However, here is the panel spec:

"The solar PV panels will have a performance guarantee for at least 25 years which will be backed by a global reputable organisation
All PV panels to have a minimum of a 25 year, 0.7% degradation linear output warranty and a minimum 12 year Product warranty
Solar PV panels shall have been tested under year long laboratory test conditions providing leading output particularly at Low Light conditions. The PV panels should perform at a minimum of 16% efficiency."

Standard warranty is 10 years on most products. Degradation is also odd as if linear is this over the entire period or does it exclude the 3% often given in year one?

I am as certain as I can be this is a specific panel, but which one?

 
Last edited:
looks like LG to me too.

ps I've given up on this, I tend to just price for what we think that's close enough to the spec then put it down as a variation, as the contract usually goes to the best value bidder anyway.
 

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