Hello
we are planning a new semi-detached house.
We want to install a photovoltaic system later on.
We will get the right half shown in the photo. Orientation is southwest.
The photovoltaic system will of course be installed on the southwest side facing the garden.
The black area is the 3x5 m (10x16 ft) terrace, which will later be covered with a fixed terrace roof measuring 4 m (13 ft) deep and 5.5 m (18 ft) wide.
My question is whether it will still be possible to install a photovoltaic system on the roof once the fixed terrace roof is there?
If the terrace roof is on the southwest side in the garden, it will no longer be possible to set up scaffolding.
For maintenance or in case of problems, access to the photovoltaic system will be necessary later on (is access without scaffolding not possible?)
Or can the photovoltaic system be installed without scaffolding?
The house will have a gable roof and 2.5 full stories.
we are planning a new semi-detached house.
We want to install a photovoltaic system later on.
We will get the right half shown in the photo. Orientation is southwest.
The photovoltaic system will of course be installed on the southwest side facing the garden.
The black area is the 3x5 m (10x16 ft) terrace, which will later be covered with a fixed terrace roof measuring 4 m (13 ft) deep and 5.5 m (18 ft) wide.
My question is whether it will still be possible to install a photovoltaic system on the roof once the fixed terrace roof is there?
If the terrace roof is on the southwest side in the garden, it will no longer be possible to set up scaffolding.
For maintenance or in case of problems, access to the photovoltaic system will be necessary later on (is access without scaffolding not possible?)
Or can the photovoltaic system be installed without scaffolding?
The house will have a gable roof and 2.5 full stories.
D
Deliverer17 Sep 2021 18:27Tom1978 schrieb:
When there are subsidies, the prices of photovoltaic systems also increase.Subsidies have been available for 20 years, and since then prices have fallen by several hundred percent...Deliverer schrieb:
The subsidy has been available for 20 years, and since then prices have dropped by several hundred percent...Really? A 100% reduction would mean zero.
So you actually still get money back?
Deliverer schrieb:
The subsidy has been available for 20 years, and since then prices have dropped by several hundred percent...I was referring to the short term as well. Just look at how the subsidy for energy efficiency consultants affects things. Because technology keeps improving and becoming more affordable, prices decrease in the long run.
RotorMotor schrieb:
To put it simply:
You receive the money from KfW, which you can repay over 20 years.
For example, if you invest 15,000€ (about $16,000) in a photovoltaic system, that’s less than €70 ($75) per month.
If you now receive €70 ($75) in feed-in tariff or save that much on electricity costs, the system effectively costs you nothing—you don’t spend a cent of your own money.
Systems costing around €1,000 ($1,075) per kWp are definitely possible, so with 15 kWp, oriented well, you can expect about 15 MWh per year, which at the current tariff equals around €90 ($100) per month. Even more with some self-consumption.
So, where exactly is the financial problem? What more subsidies or support do you expect?
Yes, you must not overpay for the system.
And if the financial situation is tight, it makes sense to consider appropriate insurance. It was not presented that way in our case. With the KfW loan, the maximum term discussed was 10 years (we wanted to pay it off sooner and aimed for 6 years). Back then, the system would have cost €18,000 (after subsidies, which I believe are no longer available). We didn’t want a battery storage system. For us, the feed-in tariff has been just under 6 cents ($0.06) for 2 years now. Our neighbor is already trying this out.
The calculation showed that we would pay nearly €400 ($430) per month, or about €200 ($215) per month over 10 years. Since even that was not affordable for us at that time, we shelved the idea. I don’t consume that much electricity per month anyway, and the feed-in tariff continues to decrease. It’s now announced to drop to 5.6 cents ($0.06) with our neighbor.
D
Deliverer20 Sep 2021 13:18@Evolith Where do the incorrect feed-in tariff rates come from? In October, for example, the first 10 kWp receive 7.14 cents. After that, up to 40 kWp, it’s 6.94 cents. Two years ago, the rates were around 11 cents. Someone here has given wrong information.
And why would you want to pay off a loan, which comfortably pays for itself over 15 years (or 10 years if you put in some equity), quickly? What’s the hurry?
And why would you want to pay off a loan, which comfortably pays for itself over 15 years (or 10 years if you put in some equity), quickly? What’s the hurry?
R
RotorMotor20 Sep 2021 14:27Evolith schrieb:
It was not presented that way for us. In our case, the maximum term mentioned (as part of the KfW loan) was 10 years (we actually wanted to pay it off earlier and aimed for 6 years). The system would have cost 18,000 euros back then (after subtracting the subsidy, which I believe no longer exists). We did not want a battery. Our feed-in tariff has been just under 6 cents for 2 years now. Our neighbor is also participating in this.
It was calculated that we would be paying just under 400 euros per month, or about 200 euros monthly if spread over 10 years. Since even that was not affordable for us at the time, we shelved the idea. I don’t consume that much electricity per month, and the feed-in tariff keeps decreasing. For our neighbor, it is now announced at 5.6 cents. The figures given for the feed-in tariff are simply wrong!
As for the rest:
Oh dear, so you’re financing your house construction over only 6 years and then wonder why the installment is higher than the rent for a comparable property?
That obviously makes sense... not.
Calculating a photovoltaic system over 6 years is just nonsense. The subsidies actually span over 20 years, so that is the correct (minimum) time frame to consider.