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  #121  
Old 26.10.2022, 13:01
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Re: Solar Panels Advice

We live at 950m- and have solar panels for hot water fitted on a concrete frame in our meadow next to the house and near boiler. In winter we maintain a path to the panels so we can regularly clear them of snow with a large broom. Winter is when the sun is at brightest up here.
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  #122  
Old 26.10.2022, 14:07
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Re: Solar Panels Advice

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Update:

We have just had 2 very sunny quarters (April - June, and July - Sept) and now I have some real figures for our 9.6kWh peak system.

Annoyingly we are sending 75% of our production into the grid (EKZ). We don't seem to be able to use enough of our own production, even with 2 electric cars!

The summer 6 months saw our 2 electric bills credit us with CHF44. What will winter hold?

By my calculations, as prices go up about 28% in January 2023, our summer credit will be a little higher next year. EKZ pay half the unit cost for feeding the grid...

Are you charging the cars more when it's sunny? Do you also have a heatpump for heating and hot water?


I have a friend who uses this: https://www.solarmanager.ch/vorteile/ and from what I understand, it can optimize when you charge a battery, heat your house/water, charge cars, based on weather forecasts.
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  #123  
Old 26.10.2022, 15:40
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Re: Solar Panels Advice

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Are you charging the cars more when it's sunny? Do you also have a heatpump for heating and hot water?


I have a friend who uses this: https://www.solarmanager.ch/vorteile/ and from what I understand, it can optimize when you charge a battery, heat your house/water, charge cars, based on weather forecasts.
We try to charge our cars only when it’s sunny. Otherwise at the cheaper overnight tariff.

Yes we have a heat pump for all heat and hot water.

I have a very simple monitoring system: I can see on my phone at anytime how much electricity is being generated. And pick car charging/washing clothes/dishwasher etc manually from this.

A similar system your friend’s was available (Smartfox), but it cost CHF2000.-. I figured it would never begin to pay for itself…
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  #124  
Old 01.11.2022, 09:08
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Re: Solar Panels Advice

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Update:

We have just had 2 very sunny quarters (April - June, and July - Sept) and now I have some real figures for our 9.6kWh peak system.

Annoyingly we are sending 75% of our production into the grid (EKZ). We don't seem to be able to use enough of our own production, even with 2 electric cars!

The summer 6 months saw our 2 electric bills credit us with CHF44. What will winter hold?

By my calculations, as prices go up about 28% in January 2023, our summer credit will be a little higher next year. EKZ pay half the unit cost for feeding the grid...
For your 9.6kWh peak system, what does that translate into for average kWh produced per day (I guess you only have data for summer quarters so far)?
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  #125  
Old 19.11.2022, 11:41
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Re: Solar Panels Advice

Our local electric company is now buying back solar electric power at 41 rp per KWh.

Great times for having solar!!!

Rückliefervergütung Photovoltaik Vergütung exkl. MWST
1. Quartal 2022 26.42 Rp./kWh
2. Quartal 2022 21.52 Rp./kWh
3. Quartal 2022 40.30 Rp./kWh
4. Quartal 2022 Publikation im Januar 2023
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  #126  
Old 23.11.2022, 12:04
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Re: Solar Panels Advice

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Our local electric company is now buying back solar electric power at 41 rp per KWh.

Great times for having solar!!!

Rückliefervergütung Photovoltaik Vergütung exkl. MWST
1. Quartal 2022 26.42 Rp./kWh
2. Quartal 2022 21.52 Rp./kWh
3. Quartal 2022 40.30 Rp./kWh
4. Quartal 2022 Publikation im Januar 2023
Is that Primeo?
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  #127  
Old 23.11.2022, 12:08
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Re: Solar Panels Advice

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Is that Primeo?
I wish! We receive 14.65Rp/KWh
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  #128  
Old 23.11.2022, 18:47
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Re: Solar Panels Advice

Email just in from EKZ. They will pay from January 1, 2023:

High tariff 12.40rp (was 9.10rp) up 36%

Low tariff 11.40rp (was 7.75rp) up 47%

All figures include HKN subsidy.

High tariff will be 7.00 - 20.00 weekdays. All Saturday and Sunday low tariff...
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  #129  
Old 23.11.2022, 19:08
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Re: Solar Panels Advice

The 14.65 Rp/KWh is excl. HKN
For HKN they pay an extra 1.5 Rp/KWh if you consume the Standard Product
and 4.5Rp/KWh if you signed up for the Green electricity.

So you can get up to 19.15 Rp/KWh excl. MWST/VAT

If you buy the Green Product they in return charge you 3 Rp/KWh extra for the power you buy from them.
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  #130  
Old 23.11.2022, 19:10
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Re: Solar Panels Advice

All the above is with Primeo.

How can I edit a post from myself? Is there a minimum post number before it is available?
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  #131  
Old 23.11.2022, 19:44
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Re: Solar Panels Advice

A question for those with an installed PV system: what does the kWp figure translate to in terms of daily/monthly kWh generated? I'm trying to understand the relationship to help size an array.
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  #132  
Old 23.11.2022, 20:37
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Re: Solar Panels Advice

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A question for those with an installed PV system: what does the kWp figure translate to in terms of daily/monthly kWh generated? I'm trying to understand the relationship to help size an array.
We have a 9,600kWhp system (24 x 400kWh panels). Rarely do we reach anything like that - maybe 2 or 3 times a year have I noted it.

Usually we max at about 5,000 watts this time or year, 7,000 in the summer.

More important is what you are asking and that depends on more factors, such as angle of panels, direction they face.

Last year we generated 9,100 kWh for the whole year. 2022 was sunnier an just today we exceeded 10,000kWh since January…
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  #133  
Old 23.11.2022, 21:31
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Re: Solar Panels Advice

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We have a 9,600kWhp system (24 x 400kWh panels). Rarely do we reach anything like that - maybe 2 or 3 times a year have I noted it.

Usually we max at about 5,000 watts this time or year, 7,000 in the summer.

More important is what you are asking and that depends on more factors, such as angle of panels, direction they face.

Last year we generated 9,100 kWh for the whole year. 2022 was sunnier an just today we exceeded 10,000kWh since January…
So ~10kWhp generates ~10MWh a year.

It is strange because one online calculators gave 10kWhp -> 1000 kWh a year which seems very low.

I guesestimated 7'000 kWh a year which is more in line with your figures.

Last edited by Phil_MCR; Yesterday at 10:58.
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  #134  
Old 25.11.2022, 12:28
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Re: Solar Panels Advice

I've got 5.25KW (14 x 375W) but that's theoretical/spec, in reality from March to September it's typically ~4.25KW tops. Production of 6.2MW so far this sunny year.
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  #135  
Old 26.11.2022, 11:34
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Re: Solar Panels Advice

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Is that Primeo?
This is BKW. Think its highest payout now in CH for solar. Good times!
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  #136  
Old 27.11.2022, 18:44
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Re: Solar Panels Advice

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This is BKW. Think its highest payout now in CH for solar. Good times!
Isn't BKW in Bern? Your location is Basel-Land.
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  #137  
Old 27.11.2022, 20:25
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Re: Solar Panels Advice

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Isn't BKW in Bern? Your location is Basel-Land.
This area of Basel Land used to be Bern about 20 years ago + and the power company stayed servicing here. Lucky for us!
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  #138  
Old 27.11.2022, 20:33
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Re: Solar Panels Advice

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Isn't BKW in Bern? Your location is Basel-Land.
Actually more like 30 years ago. Until 1994 this district belonged to the canton of Bern .
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  #139  
Old Yesterday, 10:43
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Re: Solar Panels Advice

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I've got 5.25KW (14 x 375W) but that's theoretical/spec, in reality from March to September it's typically ~4.25KW tops. Production of 6.2MW so far this sunny year.

I got 48 panels, each about 300w so theoretical total of 14.4Kw


2019 (March-Dec) 14.38 MWh
2020 (Jan-Dec) 16.21 MWh
2021 (Jan-Dec) 14.66 MWh
2022 (Jan-today) 16.57 MWh
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  #140  
Old Yesterday, 11:18
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Re: Solar Panels Advice

Has anyone tried signing up with CKW?


https://www.ckw.ch/lp/solarstrom-verkaufen.html


They are based in Luzern and claim to pay .32/kWh at the time of writing this post, regardless of the canton that you live in. This seems like a game-changer for most of us, who are getting around .10/kWh.
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