Solar PV quote from Hanergy at IKEA

ASR9

Hi Everyone, we just had the system installed by Hanergy/Ikea,

The installation was completed and went well, the system is now up and running and we are checking the meter every hour to see how much we have generated! The in store sales team in Milton Keynes Ikea were brilliant, making sure we had all of our questions answered.

Before deciding to buy, we did our research on the panels and discovered that despite the panels being smaller (approx 0.8m x 1.2m) and lower wattage, they are more efficient when on the roof due to low light functionality, and for the fact that by covering a larger surface area the panels capture more sunlight and converting that light into more energy- sounds simple but it's quite logical! This was the explanation given to us by a friend who fits solar panels onto narrow boats, most of which now using smaller thin film panels too!

In terms of service I'd probably rate Hanergy/ Ikea at around 8 or 9 out of 10, installation day could have come around quicker, but the service and product are brilliant! :j

Fred_Bear_2

ASR9 wrote: »

Before deciding to buy, we did our research on the panels and discovered that despite the panels being smaller (approx 0.8m x 1.2m) and lower wattage, they are more efficient when on the roof due to low light functionality, and for the fact that by covering a larger surface area the panels capture more sunlight and converting that light into more energy- sounds simple but it's quite logical! This was the explanation given to us by a friend who fits solar panels onto narrow boats...

Do you actually have any evidence for these statements? E.g. facts and figures, testing, references? Or is it just a friend's opinion?

Martyn1981

ASR9 wrote: »

Before deciding to buy, we did our research on the panels and discovered that despite the panels being smaller (approx 0.8m x 1.2m) and lower wattage, they are more efficient when on the roof due to low light functionality, and for the fact that by covering a larger surface area the panels capture more sunlight and converting that light into more energy- sounds simple but it's quite logical!

You do understand that your panels are lower efficiency, so need more roof area to generate the same amount of leccy ..... don't you?

Mart.

PS Would your friend happen to be James2?

organum

Look up FT and Hanergy. Sorry I could not post the link due to forum policy!

Seems like lots of questions about the Chinese owners.

I had a quote from Hanergy but their insistence about paying for a quote, it's for the epc sir!, made me look further into them and going else where.

Seems strange to me that IKEA would work with such a company.

Brock_and_Roll

From today's news I seems as if the FT's concerns about Hanenergy were correct!!

Caan

Martyn1981 wrote: »

You do understand that your panels are lower efficiency, so need more roof area to generate the same amount of leccy ..... don't you?

Mart.

PS Would your friend happen to be James2?

Think you may have not thought that one through fully.

Presuming he's referring to Panasonic 240's. Compared to most standard panels its more efficient for the space covered.

Example, you have a 8.1M x 3.7M roof space.

Panasonic 240's at 0.8M x 1.2M would fit 30 panels. 3 rows of 10.
Renesola 250's at 1.012 x 1.66M would fit 14 panels. 2 rows 7.

Smaller panels output would be 7,200W.
Standard panels output would be 3,500W.

Obviously the example is a bit more suited to the smaller panels because of the dimensions, but that's why people usually install smaller panels. They are a bit dearer too though in terms of pence per watt. But over the FIT agreement they make up for themselves. Thats not taking into account the OP's comment about low light functionality either.... but Poly/Mono is a whole new debate.

So maybe his freind isn't James? but maybe thats a hunch

tunnel

Caan wrote: »

Example, you have a 8.1M x 3.7M roof space.

Panasonic 240's at 0.8M x 1.2M would fit 30 panels. 3 rows of 10.
Renesola 250's at 1.012 x 1.66M would fit 14 panels. 2 rows 7.

Smaller panels output would be 7,200W.
Standard panels output would be 3,500W.

Hold on a minute there,
Nobody in their right mind would fix 3 rows of 10 on a roof that size, maybe 2 x 9 with a row of landscape giving 24 panels. You can't give an example for one leaving wind breaks around the edges and not the other to show how many panels you can squeeze on there. If that's how your company works then I'm glad you didn't fit my panels

Martyn1981

Caan wrote: »

Think you may have not thought that one through fully.

Presuming he's referring to Panasonic 240's. Compared to most standard panels its more efficient for the space covered.

Did you read the post? It was a Hanergy system, not Panasonic 240's. They use lower efficiency thin film panels.

Also, the dimensions given are for Hanergy panels, not Panasonic 240's.

Also the post is suspiciously similar in content to that of James2's. Both reading like spam, for Hanergy, not Panasonic 240's.

So ........ did I think it through or not?

Mart.

organum

Reuters today reported that Hanergy is being investigated in Hong Kong for market manipulation .

Caveat emptor.

Martyn1981

tunnel wrote: »

Hold on a minute there,
Nobody in their right mind would fix 3 rows of 10 on a roof that size, maybe 2 x 9 with a row of landscape giving 24 panels. You can't give an example for one leaving wind breaks around the edges and not the other to show how many panels you can squeeze on there. If that's how your company works then I'm glad you didn't fit my panels

Don't worry T, he's talking nonsense. If you use the real dimensions for Panasonic 240's 0.8m by 1.6m, rather than the ones he gives 0.8m by 1.2m, then it would 'only' fit 2 rows of ten, so 20 panels, or 4.8kWp, not the claimed 7.2kWp.

At 120Wp, the Hanergy panels would squeeze (into this idealised size roof) 3.6kWp.

Compare that to more normal sized 'normal' panels at 1m by 1.6m, and you get 16 250Wp, or 4kWp. Even 4.56kWp using BenQ or LG 285Wp panels.

Of course, as you point out, none of these options would actually fit once you allow for panel gaps and required spaces all round.

Mart.