FAQ - frequently asked questions
Here are some of the most frequently asked questions with answers.
How do I order Greto products?
I have sent an enquiry. How long will it take to receive a reply?
Is it possible to purchase only 1 or a few panels?
How many modules are on one pallet?
What is the delivery time of the order?
Is it possible to collect the products in person?
Is it possible to reduce delivery costs?
What courier / shipping company are orders delivered by?
What if the shipment arrives damaged or incomplete?
What payment methods are available?
Will the VAT invoice for the order be included in the shipment?
Where can I find the warranty card for a particular product?
Could I get technical assistance, such as selection of panels, inverter, optimizers?
How does the possible complaint of the goods proceed?
Is it possible to purchase the installation with installation?
How to choose the power of a heat pump?
How to choose energy storage?
Does energy storage guarantee energy independence from a public energy supplier?
What is the life span of a heat pump?
Will the heat pump heat even at low temperatures?
What is half-cut technology?
What is busbar?
What is the difference between monocrystalline and polycrystalline modules?
What is the difference between an inverter and a microinverter?
What is a hybrid inverter?