Conergy solar panels

Oscargrouch

Martyn1981 wrote: »

Hope I'm not confusing you, that deal is 1,000% better than the first.

Mart.

At least £2.8K better than the first; £6K is the target; do-able anywhere today with a haggle for what you want; within reason...:rotfl:

k66

Hi All, we are going for a 4kw Panasonic HIT system and have paid a deposit we are due to install within the next week but today I was informed that the H250 black panels are no longer available and replacement N235B panels have been offered. We do want the all black panels. It looks like the N series perform better than the H series but the output is 15w less. Advice welcome.

Martyn1981

k66 wrote: »

Hi All, we are going for a 4kw Panasonic HIT system and have paid a deposit we are due to install within the next week but today I was informed that the H250 black panels are no longer available and replacement N235B panels have been offered. We do want the all black panels. It looks like the N series perform better than the H series but the output is 15w less. Advice welcome.

Hiya K. My thoughts, but doubt you'll like them!

1. Will you be getting a price reduction of 6% (15W/250W) off the quote?

2. Will the installer be putting up 17 235W panels? If so, as 17 is a prime number, has consideration been given to layout, to prevent it looking uneven?

3. Assuming that the HITs are slightly more efficient at lower light levels (no idea if those claims are justified), then any gains from the HITs will probably be lost when comparing 16 235W HITs against 16 250W 'regulars'. So you'll be paying 33% more for nothing.

4. As you can probably tell, I'm still confused why anyone would choose HITs unless they have limited roof space, since the extra cost is usually argued to justify maximising generation potential, by, for example, fitting 4kWp of HITs where only 3kWp of 'normals' would fit.

5. Not really important, as I suggest effect will be small, but black panels will probably absorb more heat than regular panels (think touching a silver or black car on a sunny day), so as panel performance drops off approx 1% for each 2.5deg off temp rise, you may find generation slightly less. I have BOB panels (black on black) on the front of my house, and I think they look great, and I assume the difference is only tiny, but might be worth asking Energetic for his thoughts on his thread:

https://forums.moneysavingexpert.com/discussion/4326665

All of that aside, if you are happy with the deal, then install time is perfect, as once past the 22/12 generation (on average) just keeps going up each day for the next 6 months. :j

Mart.

k66

Thanks for your response, I did read last night about the issue of black being less efficient, I will look at the link that you posted.

k66

Further to the above it loooks like the H250 is still available and a far superior panel to the N235B. I have been given bad information.

Oscargrouch

k66 wrote: »

Further to the above it loooks like the H250 is still available and a far superior panel to the N235B. I have been given bad information.

Hi K66,

That will be many installers for you, big, big learning curve..:(

k66

Martyn1981 wrote: »

Hiya K. My thoughts, but doubt you'll like them!

1. Will you be getting a price reduction of 6% (15W/250W) off the quote?

2. Will the installer be putting up 17 235W panels? If so, as 17 is a prime number, has consideration been given to layout, to prevent it looking uneven?

The installer has agreed to the installation of 18 panels, 2 rows of 9 panels on the roof to make it look symmetrical and leave one redundant.


The cost of the system will remain the same.

k66

k66 wrote: »

Further to the above it loooks like the H250 is still available and a far superior panel to the N235B. I have been given bad information.

I have just obtained this info:

Panasonic they have decided to stop the production of the HD product line (VBHH250AE01 and VBHH245AE01).

Looks like the N series is the replacement.

k66

Hi all thanks for all your support we are up and running on the shortest day of the year
17 black panasonic 235w panels with an additional one for cosmetic purposes!
Sunny Boy 4000 inverter.
I wish the clouds would go away but it can only get better.
Today we produced 0.387kw at least it's a start.
Merry Christmas and a sunny new year!