Solid means that the company has sufficient references both in electrical and heating engineering. It should be located in your area – personal contact usually helps to resolve any issues. Solid means, too: It needs to be highly probable that the company will still be in business in 20 years. A solid installation company will also be competent in advising you on financing through your regional bank and on insurance for the components of your installation.
Only buy brand-name products
Solid first and foremost also means: Your supplying company offers you brand-name products from reliable manufacturers. These should preferably be European brands and providers that have been certified.
All documentation should be available in your language and all issues around warranty should be dealt with through companies that at least have branch offices in your country. It is no good for you to buy a cheap storage unit that stops working eight weeks after you got it.
Sad faces all around
The closer you are to your supplier and the lower the language barrier, the better it is in case anything goes wrong. Because it is in the nature of technology to go wrong sometimes. And when it does: sad faces all round.
Make sure suppliers have provisions!
Before you buy the products, you should make sure that the manufacturers have sufficient provisions to be able to continue to provide service for their products in case of insolvency. The more expensive a product is, the more important such details become.
Because if a supplier of batteries or a panel manufacturer slips into bankruptcy, installing companies and their customers are stuck in case of defects. And no judge in the world will be able to change that! (HS)
Learn more:
Solar advice: Quick switch-off in case of fire!
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