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Solar PV in Luxembourg, municipality by municipality

820.8 MW of solar PV connected as of 19 October 2026, up +38% since the Q1 2025 reading: solar accounts for 64.8% of decentralised generation capacity. The Open Data portal asked for the share of solar PV in electricity production by municipality; since the Leneda files give connected capacity rather than energy produced, this dashboard measures the PV share of installed capacity, municipality by municipality.

Data as of 19 October 2026 Source Leneda · data.public.lu Licence CC0 100 municipalities · 6 technologies

Installed solar PV

820.8 MW

capacity connected to the grid

PV growth

+38 %

since the Q1 2025 reading

PV installations

37,978

connected to the grid · +50% since Q1 2025

Share of decentralised fleet

of 1,267 MW across all technologies

Since end-2025

+75.5 MW

+4,728 installations · weekly reading vs Q4 2025 reading

PNEC 2030 reference

1,236 MW

national energy and climate plan, July 2024 update

Reminder: installed capacity does not mean energy produced; the PNEC figure is the target written into the national plan, not a projection by this dashboard.

National trajectory: PV pulls ahead

MW installed · Q1 2025 → today

Cumulative installed capacity by technology across the 6 published readings. Solar PV accounts for 92% of the 246 MW net added to the fleet since Q1 2025 (wind +34.3 MW, cogeneration -15.5 MW, hydropower, biomass and biogas -0.3 MW together).

Chart data

Reading	Solar PV	Wind	Biomass	Cogeneration	Hydro	Biogas
2025 Q1	593.8	213.7	96.6	73.1	34.0	9.8
2025 Q2	648.7	213.7	96.6	73.1	34.0	9.8
2025 Q3	698.4	226.5	96.6	72.5	34.0	9.2
2025 Q4	745.4	230.7	96.6	72.5	34.0	9.9
2026 Q1	769.3	230.7	96.6	60.3	34.0	9.8
19 Oct 2026	820.8	248.1	96.6	57.6	34.0	9.4

How much PV capacity is added each quarter?

net MW added between two consecutive readings

Net additions of solar PV capacity between consecutive Leneda readings. The quarterly bars compare two quarterly files; the last bar compares the weekly reading of 19 October 2026 with the latest published quarterly reading (Q1 2026), two separate Leneda extracts.

2025 Q1 → 2025 Q2

+54.9 MW · +2,863 inst.

2025 Q2 → 2025 Q3

+49.7 MW · +2,385 inst.

2025 Q3 → 2025 Q4

+47.0 MW · +2,604 inst.

2025 Q4 → 2026 Q1

+23.9 MW · +1,597 inst.

2026 Q1 → 19 Oct 2026 · weekly vs quarterly

+51.6 MW · +3,131 inst.

What share of electricity comes from solar?

Capacity (MW) and production (GWh) are two different measures. According to the ILR (Key figures 2025 of the electricity market, published 2026), solar PV produced 627 GWh in 2025, ahead of wind (467 GWh), out of a national production of 1,826 GWh and a gross national consumption of 6,529 GWh; 444 GWh were self-consumed or shared (7% of final consumption). Lux-solaire calculation from these figures: PV accounts for 34.3% of national production and 9.6% of gross consumption.

Official reference figures

ILR, end of 2025: 746 MW of solar PV (+197 MW, +35.8%) and 33,304 installations (+10,694, +47.3%). Leneda, Q4 2025 reading: 745.4 MW and 33,250 installations.

PNEC (integrated national energy and climate plan, July 2024 update, table 8, p. 44), planned installed PV capacity, in MW:

2025	2026	2027	2028	2029	2030
644	756	867	989	1,111	1,236

Technology mix

reading of 19 October 2026

Solar PV64.8 % · 820.8 MW

Wind19.6 % · 248.1 MW

Biomass7.6 % · 96.6 MW

Cogeneration4.5 % · 57.6 MW

Hydro2.7 % · 34.0 MW

Biogas0.7 % · 9.4 MW

Three signals in the data

24 municipalities

draw, to the nearest rounding, all of their decentralised capacity from solar PV. The median PV share per municipality reaches 93.4%.

+12,426 kW

the largest rise in PV capacity since the Q1 2025 reading, in Luxembourg (+83%).

4 × ≈5 MW

The four largest PV installations on record top out just below 5 MW (Junglinster, Differdange, Käerjeng, Sanem), likely the mark of a tender threshold.

Top 15: PV capacity

kW installed

Sanem · Esch

30,165 · 31.3 %

Luxembourg · Luxembourg

27,322 · 45.9 %

Wincrange · Clervaux

25,794 · 32.6 %

Junglinster · Grevenmacher

25,734 · 95.3 %

Dudelange · Esch

24,131 · 93.3 %

Clervaux · Clervaux

22,771 · 64.7 %

Käerjeng · Capellen

21,210 · 97.2 %

Differdange · Esch

20,774 · 96.1 %

Colmar-Berg · Mersch

19,889 · 81.2 %

Contern · Luxembourg

17,292 · 99.5 %

Rambrouch · Redange

15,225 · 41.4 %

Troisvierges · Clervaux

14,346 · 100.0 %

Parc Hosingen · Clervaux

14,079 · 42.9 %

Mersch · Mersch

13,524 · 59.8 %

Niederanven · Luxembourg

13,373 · 87.7 %

Top 10: PV growth

kW added since Q1 2025

Luxembourg · Luxembourg

+12,426 · +83 %

Colmar-Berg · Mersch

+7,935 · +66 %

Tandel · Vianden

+7,442 · +129 %

Sanem · Esch

+7,069 · +31 %

Differdange · Esch

+6,681 · +47 %

Frisange · Esch

+5,263 · +98 %

Bissen · Mersch

+5,174 · +70 %

Bettembourg · Esch

+5,130 · +68 %

Dippach · Capellen

+5,121 · +113 %

Contern · Luxembourg

+5,055 · +41 %

Which municipalities have the most solar PV per inhabitant?

RNPP population as of 1er October 2026

Set against population, PV capacity reverses the rankings: 1,179 W per inhabitant nationally (municipal median 1,687 W/inh.), 7,883 W/inh. in Colmar-Berg against 197 in Luxembourg. Large plants inflate small municipalities: in Colmar-Berg, 19.9 MW come from only 171 installations. The “rooftops” column counts installations of 30 kW or less per 1,000 inhabitants.

Top 10: W per inhabitant

rooftops (≤ 30 kW) per 1,000 inh. second

Colmar-Berg · Mersch

7,883 W/inh. · 61.0 rooftops/1,000

Tandel · Vianden

5,556 W/inh. · 107.6 rooftops/1,000

Wincrange · Clervaux

5,129 W/inh. · 126.9 rooftops/1,000

Nommern · Mersch

4,335 W/inh. · 120.8 rooftops/1,000

Ell · Redange

4,199 W/inh. · 134.2 rooftops/1,000

Troisvierges · Clervaux

3,823 W/inh. · 80.7 rooftops/1,000

Flaxweiler · Grevenmacher

3,756 W/inh. · 120.2 rooftops/1,000

Clervaux · Clervaux

3,567 W/inh. · 86.5 rooftops/1,000

Bissen · Mersch

3,505 W/inh. · 77.4 rooftops/1,000

Redange/Attert · Redange

3,493 W/inh. · 105.1 rooftops/1,000

The 12 cantons

sorted by W/inh.

Canton	PV kW	Inst.	Population	W/inh.	Inst./1,000 inh.
Clervaux	85,621	2,495	22,423	3,818	111.3
Vianden	16,647	485	5,856	2,843	82.8
Redange	59,552	2,803	21,812	2,730	128.5
Grevenmacher	77,536	2,940	34,461	2,250	85.3
Mersch	78,170	2,938	37,424	2,089	78.5
Wiltz	35,362	1,708	20,623	1,715	82.8
Echternach	34,617	1,689	20,736	1,669	81.5
Remich	36,990	1,873	24,844	1,489	75.4
Capellen	83,898	4,614	57,336	1,463	80.5
Diekirch	41,472	2,089	36,670	1,131	57.0
Esch	160,528	7,451	198,114	810	37.6
Luxembourg	110,439	6,893	215,968	511	31.9

The residential paradox

37,977 PV installations counted one by one

96% of installations are 30 kW or less, mostly residential rooftops, yet they account for only 55% of capacity. At the other end, 132 installations above 0.5 MW alone concentrate 175 MW.

share of installations share of capacity

0–5 kW

8 % · 2,979 inst.

1 % · 11.7 MW

5–10 kW

40 % · 15,195 inst.

15 % · 120.5 MW

10–15 kW

25 % · 9,529 inst.

14 % · 115.8 MW

15–30 kW

23 % · 8,830 inst.

24 % · 201.0 MW

30–100 kW

2 % · 616 inst.

5 % · 38.1 MW

100–500 kW

2 % · 696 inst.

19 % · 158.6 MW

0.5–1 MW

0.2 % · 78 inst.

7 % · 55.9 MW

1–5 MW

0.1 % · 54 inst.

15 % · 119.3 MW

Chart data

Size (kW)	Inst.	share of installations	MW	share of capacity
0–5 kW	2,979	7.8 %	11.7	1.4 %
5–10 kW	15,195	40.0 %	120.5	14.7 %
10–15 kW	9,529	25.1 %	115.8	14.1 %
15–30 kW	8,830	23.3 %	201.0	24.5 %
30–100 kW	616	1.6 %	38.1	4.6 %
100–500 kW	696	1.8 %	158.6	19.3 %
0.5–1 MW	78	0.2 %	55.9	6.8 %
1–5 MW	54	0.1 %	119.3	14.5 %

The 100 municipalities

click a header to sort


Sanem	Esch	30,165	891	31.3 %	+7,069	96,480	1,525	45.1
Luxembourg	Luxembourg	27,322	2,024	45.9 %	+12,426	59,508	197	14.6
Wincrange	Clervaux	25,794	708	32.6 %	+3,100	79,074	5,129	140.8
Junglinster	Grevenmacher	25,734	861	95.3 %	+4,735	27,008	2,765	92.5
Dudelange	Esch	24,131	957	93.3 %	+2,777	25,868	1,074	42.6
Clervaux	Clervaux	22,771	618	64.7 %	+3,388	35,201	3,567	96.8
Käerjeng	Capellen	21,210	841	97.2 %	+3,322	21,821	1,854	73.5
Differdange	Esch	20,774	903	96.1 %	+6,681	21,620	661	28.7
Colmar-Berg	Mersch	19,889	171	81.2 %	+7,935	24,484	7,883	67.8
Contern	Luxembourg	17,292	479	99.5 %	+5,055	17,382	3,401	94.2
Rambrouch	Redange	15,225	750	41.4 %	+3,511	36,800	2,969	146.3
Troisvierges	Clervaux	14,346	347	100.0 %	+1,989	14,346	3,823	92.5
Parc Hosingen	Clervaux	14,079	569	42.9 %	+2,555	32,849	3,134	126.7
Mersch	Mersch	13,524	695	59.8 %	+4,772	22,605	1,235	63.5
Niederanven	Luxembourg	13,373	872	87.7 %	+4,635	15,253	1,872	122.1
Tandel	Vianden	13,223	275	72.6 %	+7,442	18,223	5,556	115.5
Kehlen	Capellen	12,992	797	97.6 %	+4,043	13,312	1,691	103.8
Betzdorf	Grevenmacher	12,933	507	96.9 %	+3,257	13,343	3,068	120.3
Mondercange	Esch	12,722	520	75.2 %	+2,070	16,928	1,735	70.9
Bettembourg	Esch	12,721	662	95.3 %	+5,130	13,351	1,086	56.5
Bissen	Mersch	12,587	310	76.3 %	+5,174	16,492	3,505	86.3
Esch-sur-Alzette	Esch	12,148	448	96.8 %	+3,975	12,553	317	11.7
Mamer	Capellen	12,092	721	86.7 %	+2,572	13,949	1,020	60.8
Grevenmacher	Grevenmacher	11,912	243	58.8 %	+1,037	20,272	2,240	45.7
Redange/Attert	Redange	11,039	365	88.8 %	+1,940	12,434	3,493	115.5
Frisange	Esch	10,657	442	100.0 %	+5,263	10,657	2,103	87.2
Hesperange	Luxembourg	10,323	688	94.7 %	+3,466	10,905	594	39.6
Dippach	Capellen	9,650	411	100.0 %	+5,121	9,650	2,015	85.8
Steinfort	Capellen	9,333	538	97.4 %	+2,262	9,583	1,511	87.1
Wiltz	Wiltz	9,214	369	56.7 %	+3,744	16,248	1,070	42.9
Helperknapp	Mersch	9,129	592	99.7 %	+2,264	9,159	1,697	110.1
Bertrange	Luxembourg	8,832	482	97.6 %	+2,814	9,052	898	49.0
Schengen	Remich	8,714	507	64.6 %	+2,057	13,494	1,660	96.6
Weiswampach	Clervaux	8,631	253	30.1 %	+2,731	28,639	3,121	91.5
Schuttrange	Luxembourg	8,598	485	89.1 %	+2,970	9,646	1,931	108.9
Flaxweiler	Grevenmacher	8,534	297	95.5 %	+1,038	8,933	3,756	130.7
Echternach	Echternach	8,293	223	100.0 %	+1,522	8,293	1,378	37.1
Mondorf-les-Bains	Remich	8,173	267	80.3 %	+1,457	10,179	1,464	47.8
Rosport-Mompach	Echternach	7,845	436	46.0 %	+1,233	17,045	2,050	114.0
Steinsel	Luxembourg	7,646	495	93.8 %	+1,770	8,155	1,204	77.9
Groussbus-Wal	Redange	7,267	338	99.9 %	+1,304	7,273	3,060	142.3
Ell	Redange	7,163	247	90.0 %	+1,054	7,963	4,199	144.8
Roeser	Esch	7,021	447	60.8 %	+3,358	11,541	969	61.7
Pétange	Esch	6,972	593	84.3 %	+2,946	8,272	326	27.7
Habscht	Capellen	6,812	454	100.0 %	+2,222	6,812	1,276	85.0
Lenningen	Remich	6,756	208	100.0 %	+5,052	6,756	3,231	99.5
Lac de la Haute-Sûre	Wiltz	6,738	292	100.0 %	+1,235	6,738	2,805	121.6
Nommern	Mersch	6,529	201	93.6 %	+607	6,979	4,335	133.5
Erpeldange-sur-Sûre	Diekirch	6,353	226	97.1 %	+1,215	6,543	2,289	81.4
Beckerich	Redange	6,147	344	59.0 %	+1,289	10,417	2,092	117.1
Leudelange	Esch	6,087	206	22.2 %	+2,604	27,415	2,215	75.0
Esch-sur-Sûre	Wiltz	5,787	341	25.2 %	+1,193	22,931	1,683	99.2
Vallée de l'Ernz	Diekirch	5,605	290	30.5 %	+1,396	18,375	1,907	98.7
Feulen	Diekirch	5,450	236	61.7 %	+1,475	8,840	2,227	96.4
Mertert	Grevenmacher	5,341	255	92.5 %	+1,299	5,777	915	43.7
Walferdange	Luxembourg	5,206	409	83.9 %	+2,094	6,206	553	43.4
Winseler	Wiltz	5,191	167	100.0 %	+661	5,191	3,206	103.2
Reckange-sur-Mess	Esch	5,161	318	100.0 %	+1,747	5,161	1,696	104.5
Beaufort	Echternach	5,131	220	100.0 %	+1,346	5,131	1,623	69.6
Strassen	Luxembourg	5,113	387	70.1 %	+2,448	7,289	461	34.9
Schifflange	Esch	5,097	487	88.1 %	+2,094	5,787	430	41.1
Ettelbruck	Diekirch	5,022	292	55.7 %	+1,462	9,023	497	28.9
Mertzig	Diekirch	4,871	260	100.0 %	+998	4,871	2,012	107.4
Kayl	Esch	4,749	437	100.0 %	+1,761	4,749	475	43.7
Koerich	Capellen	4,686	277	83.9 %	+1,136	5,586	1,675	99.0
Stadtbredimus	Remich	4,673	238	100.0 %	+2,484	4,673	2,331	118.7
Lorentzweiler	Mersch	4,645	313	97.5 %	+1,429	4,765	970	65.3
Wormeldange	Grevenmacher	4,576	273	99.9 %	+1,340	4,582	1,391	83.0
Bous-Waldbredimus	Remich	4,543	335	100.0 %	+1,448	4,545	1,355	99.9
Manternach	Grevenmacher	4,377	304	50.1 %	+926	8,737	1,894	131.5
Waldbillig	Echternach	4,347	255	100.0 %	+1,142	4,347	2,178	127.8
Diekirch	Diekirch	4,133	157	49.3 %	+1,016	8,381	557	21.2
Biwer	Grevenmacher	4,128	200	100.0 %	+1,113	4,128	2,161	104.7
Garnich	Capellen	4,096	328	36.9 %	+1,176	11,096	1,624	130.1
Bettendorf	Diekirch	3,866	206	93.0 %	+733	4,157	1,258	67.0
Heffingen	Mersch	3,801	159	100.0 %	+2,348	3,801	2,342	98.0
Useldange	Redange	3,788	245	98.8 %	+899	3,833	1,729	111.8
Vichten	Redange	3,757	190	100.0 %	+619	3,757	2,624	132.7
Sandweiler	Luxembourg	3,481	298	84.7 %	+1,230	4,111	900	77.1
Lintgen	Mersch	3,475	238	84.8 %	+938	4,100	999	68.4
Boulaide	Wiltz	3,447	200	100.0 %	+641	3,447	2,208	128.1
Weiler-la-Tour	Luxembourg	3,253	274	99.8 %	+910	3,259	1,293	108.9
Consdorf	Echternach	3,190	221	100.0 %	+345	3,190	1,527	105.8
Berdorf	Echternach	3,100	154	99.9 %	+1,195	3,102	1,368	68.0
Kopstal	Capellen	3,027	247	99.6 %	+1,204	3,038	640	52.2
Saeul	Redange	2,923	154	98.0 %	+408	2,983	2,724	143.5
Fischbach	Mersch	2,891	166	100.0 %	+614	2,891	2,129	122.2
Bourscheid	Diekirch	2,775	179	12.4 %	+1,085	22,425	1,547	99.8
Bech	Echternach	2,712	180	100.0 %	+685	2,712	1,964	130.3
Goesdorf	Wiltz	2,542	175	29.6 %	+736	8,592	1,516	104.4
Dalheim	Remich	2,444	189	10.4 %	+638	23,444	1,023	79.1
Kiischpelt	Wiltz	2,443	164	98.9 %	+716	2,470	1,855	124.5
Putscheid	Vianden	2,319	146	48.7 %	+678	4,757	1,931	121.6
Préizerdaul	Redange	2,243	170	64.9 %	+561	3,458	1,240	94.0
Rumelange	Esch	2,125	140	87.8 %	+579	2,419	371	24.4
Schieren	Diekirch	1,982	156	31.3 %	+773	6,342	886	69.7
Larochette	Mersch	1,700	93	100.0 %	+443	1,700	763	41.7
Remich	Remich	1,686	129	70.4 %	+733	2,396	404	30.9
Reisdorf	Diekirch	1,414	87	98.5 %	+449	1,435	967	59.5
Vianden	Vianden	1,106	64	100.0 %	+541	1,106	486	28.1