Be very careful and don't trust anything you are told I Wasted 4+ months trusting assurances from sales manager on proposed solar panels solutions. They promise fantastic guarantees but have rediculous get out clause that make guarantee worthless, eg. weathering is not covered, in the contract they try to rush you to sign. I raised these issues within a couple of days of ordering, I was repeated told this was a standard all product contract and not appropriate for solar and would not apply. However after 4 months of this while we waited for the batteries to arrive, not that they warned me before ordering, and my repeated request for formal clarification the sales manager sent me an email stating formally those clauses did not apply, only for a senior manager to then say their contract would not change and all clauses were valid and would apply. So wasted 4+ months and now back to square one.