Real photovoltaic/solar plant ALS24 (Hasle-Rüegsau, Emmental)
This page publishes the following per year:
- Key data and yield/production of the ALS24 photovoltaic/solar system (Hasle-Rüegsau, Emmental).
- Proportions of summer and winter electricity (only for whole years).
- Feed-in, self-consumption and consumption.
- Costs and benefits (profitability).
Year:
Yield, feed-in, self-consumption, consumption and sunshine duration
| Month | Yield
kWh |
kWh/kWp | Feed-in
kWh | Own cons.
kWh | Consumption
kWh | Sun
Month
Hrs. |
Norm
Hrs. |
Deviation
Hrs. | Snow
cover
Days |
| January | 371 | 43 | 234 | 137 | 235 | 90.4 | 77.2 | +13.2 | 0.8 |
| February | 429 | 50 | 282 | 147 | 225 | 75.1 | 97.1 | -22.0 | 0.4 |
| March | 886 | 103 | 723 | 163 | 223 | 143.6 | 140.9 | +2.7 | |
| April | 1251 | 145 | 1083 | 168 | 211 | 220.9 | 165.3 | +55.6 | |
| May | 1211 | 140 | 1075 | 136 | 173 | 194.5 | 184.2 | +10.3 | |
| June | 1436 | 166 | 1309 | 127 | 161 | 291.5 | 207.8 | +83.7 | |
| July | 1245 | 144 | 1128 | 117 | 155 | 215.6 | 231.1 | -15.5 | |
| August | 1263 | 146 | 1159 | 104 | 144 | 251.2 | 214.2 | +37.0 | |
| Total | 8092 | 937 | 6993 | 1099 | 1526 | 1482.8 | 1317.8 | +165.0 | 1.2 |
Origin sun (= sunshine duration): MeteoSwiss
Legend:
- Snow cover
Snow cover has been recorded since the winter of 2024/25.
Snow cover in days is calculated from the degree of snow cover (0..100%) and the duration.
Key data of the plant
| Rated power |
8.64 kWp |
| Alignment |
202° |
| Inclination |
22° |
| Type |
Roof mounted without battery |
| Number of panels |
24 |
| Panels |
Solitek 360W Bifacial
frameless |
| Inverter power |
7.0 kW |
| Inverter |
Fronius Symo 7.0-3-M |
| Location |
CH 616793 / 207198 |
| Altitude above sea level |
ca. 570m |
| Start-up of the plant |
December 2022 |
| Net costs |
ca. 23'000 CHF |
The panels are partially shaded by two large trees during the winter months (loss of up to 20% on sunny days. At high irradiation levels, the inverter limits the output to 7 kW. Without these two restrictions, a higher yield would result.
Costs and benefits (profitability)
| Month | Feed-in
kWh |
Rp/kWh |
CHF | Own cons.
kWh |
Rp/kWh |
CHF | Purchase
kWh |
Rp/kWh |
CHF | Fixed
CHF | Total
CHF |
| January |
234 |
10.58 + 3.5 = 14.08 |
+33 |
137 |
25.62 |
+35 |
99 |
25.62 |
-25 |
-14 |
29 |
| February |
282 |
10.58 + 3.5 = 14.08 |
+40 |
147 |
25.62 |
+38 |
78 |
25.62 |
-20 |
-14 |
43 |
| March |
723 |
10.58 + 3.5 = 14.08 |
+102 |
163 |
25.62 |
+42 |
60 |
25.62 |
-15 |
-14 |
114 |
| April |
1083 |
6.00 + 3.5 = 9.50 |
+103 |
168 |
25.62 |
+43 |
43 |
25.62 |
-11 |
-14 |
121 |
| May |
1075 |
6.00 + 3.5 = 9.50 |
+102 |
136 |
25.62 |
+35 |
37 |
25.62 |
-9 |
-14 |
114 |
| June |
1309 |
6.00 + 3.5 = 9.50 |
+124 |
127 |
25.62 |
+33 |
34 |
25.62 |
-9 |
-14 |
135 |
| July |
1128 |
6.00* + 3.5 = 9.50 |
+107 |
117 |
25.62 |
+30 |
38 |
25.62 |
-10 |
-14 |
113 |
| August |
1159 |
6.00* + 3.5 = 9.50 |
+110 |
104 |
25.62 |
+27 |
39 |
25.62 |
-10 |
-14 |
113 |
| Total year |
|
|
+721 |
|
|
+282 |
|
|
-109 |
-110 |
+783 |
* = The definitive feed-in tariff is not yet known.
Legend:
- Feed-in
The feed-in tariff is set by BKW (Bernische Kraftwerke) on a quarterly basis. This is always around 20 days after the end of the quarter. For the current quarter, we use a price that could apply approximately. The correct values are used as soon as they are known.
The first figure corresponds to the feed-in tariff, the second to the compensation for the guarantee of origin and the third to the sum of the first two figures.
Red colored are feed-in tariffs, which are indecent and not very effective.
- Own cons. = Own consumption
The price per kWh that would have to be paid to BKW is used for own consumption.
- Fixed = Fixed costs
The fixed costs include the basic tariff and the costs for grid usage.
Not included are the fixed costs for the use of the monitoring software and any service subscription. Both are not absolutely necessary for the operation of the solar system.
- Amounts
We receive amounts preceded by a plus sign from BKW or save them.
Amounts preceded by a minus sign are owed to BKW.
The prices listed above do not include costs that are likely to be incurred sooner or later, e.g. for replacing the inverter. The service life of the inverters is normally shorter than that of the panels.
The yield in CHF would be higher if our own consumption were higher. The higher the self-consumption, the faster the system would be amortized. [Unfortunately, this means there is no incentive to save energy, making it more difficult and costly to achieve the energy transition.
The yield in CHF would also be higher if the feed-in tariff were higher. If the dependency of domestic energy supply on foreign countries is to be reduced, the level of the feed-in tariff must not be based - as practised by BKW, for example - on the European daily price for the worst quality of electrical energy (produced from coal, gas or heating oil).
MeteoSwiss measuring stations in the area
| Measuring station |
Height
m.a.s.l. |
Distance
km |
Direction |
Link |
| Koppigen |
486 |
12 |
NNW |
Link |
| Langnau i.E. |
747 |
14 |
SE |
Link |
| Napf |
1406 |
21 |
E |
Link |