Hello,
we are planning to install a photovoltaic system and a battery for our new build. A few questions have come up, and I would like to hear other opinions on them.
We are planning a photovoltaic system with about 9.8 kWp, half on the east roof and the other half on the west roof. I have now received two offers. One supplier offered crystalline modules, while the other recommended thin-film modules. What do you think would be better here? By the way, the thin-film modules are more expensive and require more space on the roof.
Regarding the battery, I have also received two offers. One is the Sonnen battery and the other is the Senec Home. Does anyone have experience with Senec or any of the other batteries? Or have you heard anything about them? I would also appreciate experiences or opinions on other systems.
we are planning to install a photovoltaic system and a battery for our new build. A few questions have come up, and I would like to hear other opinions on them.
We are planning a photovoltaic system with about 9.8 kWp, half on the east roof and the other half on the west roof. I have now received two offers. One supplier offered crystalline modules, while the other recommended thin-film modules. What do you think would be better here? By the way, the thin-film modules are more expensive and require more space on the roof.
Regarding the battery, I have also received two offers. One is the Sonnen battery and the other is the Senec Home. Does anyone have experience with Senec or any of the other batteries? Or have you heard anything about them? I would also appreciate experiences or opinions on other systems.
If you plan to have the system installed, make sure to choose an inverter that is compatible with future operation of the system including a battery.
From the beginning, we considered adding a battery later on. However, we didn’t pursue this option in depth and only mentioned it briefly to our photovoltaic salesperson. When the report about the Tesla Powerwall first appeared around mid-last year, I asked our salesperson if our inverter would be suitable for it. Unfortunately, it is not.
A friend of ours is also having photovoltaic panels installed on their new build and is considering Tesla batteries as well. So far, their salesperson has been unable to definitively confirm whether the SMA inverter offered would be compatible with future Tesla batteries.
Personally, I find Tesla an interesting option due to their experience in electric vehicle manufacturing (after all, they are one of the few providers whose battery system doesn’t fail after 100 km (62 miles), and their vehicles also maintain reasonable travel speeds – although the price is unfortunately quite high). According to reports, their batteries are said to be competitively priced compared to existing market options (the factory is designed for mass production).
By the way: shortly after Tesla announced their entry, Daimler also declared in 2016 that they planned to enter the battery market (but I haven’t heard anything since). And just last month, BMW revealed their ambitions as well, though I didn’t fully understand the details (there was mention of “recycling” car batteries and selling them as batteries for, for example, single-family homes).
For now, we will simply sit back and observe. What are the first experiences? How will the market develop in terms of pricing? Etc.
From the beginning, we considered adding a battery later on. However, we didn’t pursue this option in depth and only mentioned it briefly to our photovoltaic salesperson. When the report about the Tesla Powerwall first appeared around mid-last year, I asked our salesperson if our inverter would be suitable for it. Unfortunately, it is not.
A friend of ours is also having photovoltaic panels installed on their new build and is considering Tesla batteries as well. So far, their salesperson has been unable to definitively confirm whether the SMA inverter offered would be compatible with future Tesla batteries.
Personally, I find Tesla an interesting option due to their experience in electric vehicle manufacturing (after all, they are one of the few providers whose battery system doesn’t fail after 100 km (62 miles), and their vehicles also maintain reasonable travel speeds – although the price is unfortunately quite high). According to reports, their batteries are said to be competitively priced compared to existing market options (the factory is designed for mass production).
By the way: shortly after Tesla announced their entry, Daimler also declared in 2016 that they planned to enter the battery market (but I haven’t heard anything since). And just last month, BMW revealed their ambitions as well, though I didn’t fully understand the details (there was mention of “recycling” car batteries and selling them as batteries for, for example, single-family homes).
For now, we will simply sit back and observe. What are the first experiences? How will the market develop in terms of pricing? Etc.
Hi,
I’m new here and this year my wife and I will be having a Hanse Haus built in the beautiful Wilhelmsfeld area (Baden-Württemberg).
We are also interested in photovoltaic systems and energy storage. Especially since Daimler (I’m an employee) now offers a program where you can purchase the complete system and individual storage units through their fully owned subsidiary Accumotive.
I find the complete offer from EnBW with the Energy Base particularly interesting.
So far, we are still in the early stages before actual photovoltaic planning, so we cannot yet make any statements regarding price or performance.
----------------
link removed by moderation. Please follow the forum rules.
Thank you!
Bauexperte
I’m new here and this year my wife and I will be having a Hanse Haus built in the beautiful Wilhelmsfeld area (Baden-Württemberg).
We are also interested in photovoltaic systems and energy storage. Especially since Daimler (I’m an employee) now offers a program where you can purchase the complete system and individual storage units through their fully owned subsidiary Accumotive.
I find the complete offer from EnBW with the Energy Base particularly interesting.
So far, we are still in the early stages before actual photovoltaic planning, so we cannot yet make any statements regarding price or performance.
----------------
link removed by moderation. Please follow the forum rules.
Thank you!
Bauexperte
I was initially advised against using a battery storage system in general.
A photovoltaic consultant mentioned that the inverter from a well-known manufacturer supports smart grid functionality, allowing it to control the heat pump. This means that during sunlight hours, the heat pump is sufficiently powered and can optimally heat the water tank. After that, not much additional energy is needed.
I would like to ask if anyone has implemented this solution as well...
A photovoltaic consultant mentioned that the inverter from a well-known manufacturer supports smart grid functionality, allowing it to control the heat pump. This means that during sunlight hours, the heat pump is sufficiently powered and can optimally heat the water tank. After that, not much additional energy is needed.
I would like to ask if anyone has implemented this solution as well...
Hi,
as a compromise, I chose an SMA Sunny Boy Smart Energy.
2kWh (2 kWh) – connected to the inverter.
The system is designed to operate very efficiently with high performance. The charging losses are comparatively low. The charge rate should be >> 1 per day.
Goal: to bridge cloudy periods, supply the house through the night from the battery as often as possible. Increase self-consumption from about 30% closer to 50%. This is theoretically possible. I lack practical proof so far. Calculations indicate that I can draw about 750 kWh per year from the battery on average and have about 1400 kWh self-consumption in total. As a grid electricity quota, I initially set 2000 kWh per year, which is generous and will be reimbursed.
I expect to be able to verify very soon (no installation date yet) whether I made the right choice and how well the calculations match reality.
The photovoltaic system itself is oriented east-west, about 2 × 3.7 kWp. 15 panels east, 13 west.
The battery is purely due to my experimental interest. I don’t believe it pays off at the current electricity prices.
Best regards,
Thorsten
as a compromise, I chose an SMA Sunny Boy Smart Energy.
2kWh (2 kWh) – connected to the inverter.
The system is designed to operate very efficiently with high performance. The charging losses are comparatively low. The charge rate should be >> 1 per day.
Goal: to bridge cloudy periods, supply the house through the night from the battery as often as possible. Increase self-consumption from about 30% closer to 50%. This is theoretically possible. I lack practical proof so far. Calculations indicate that I can draw about 750 kWh per year from the battery on average and have about 1400 kWh self-consumption in total. As a grid electricity quota, I initially set 2000 kWh per year, which is generous and will be reimbursed.
I expect to be able to verify very soon (no installation date yet) whether I made the right choice and how well the calculations match reality.
The photovoltaic system itself is oriented east-west, about 2 × 3.7 kWp. 15 panels east, 13 west.
The battery is purely due to my experimental interest. I don’t believe it pays off at the current electricity prices.
Best regards,
Thorsten
Similar topics