Strategic Infrastructure

Renewable Generation

Renewable generation covers electricity production from renewable sources other than hydropower, including solar photovoltaic and concentrated solar plants, onshore and offshore wind farms, geothermal stations, and biomass and biogas plants. One of the capabilities of Energy Infrastructure.

International families: 45k2015 to 2024
Leading country: China1.7× the next
All families: 273khome filings included
Over five years: Falling2020 to 2024 against the five before

Year by year

Patent families by country of origin and the year of the earliest filing, 2000 to 2025; 2025 is a part year, still filling in. International families are those for which protection was sought beyond one country.

Volume

International patent families in the capability, by the year of the earliest filing.

Source: Global Institute for National Capability (GINC), 2026. Underlying patents from 107 patent offices, IFI CLAIMS and Google

Share by country

Each country's share of the year's international families, in per cent: the capability's five largest countries of origin, 2015 to 2024, and the rest of the world.

Source: Global Institute for National Capability (GINC), 2026. Underlying patents from 107 patent offices, IFI CLAIMS and Google

Country leaderboard

International patent families, 2015 to 2024, by country of origin. Growth compares the latest five full years with the five before.

Ten largest

China

Japan

United States

South Korea

Germany

Denmark

France

Spain

Taiwan

United Kingdom

9,914

5,849

5,618

5,116

4,625

3,176

1,556

1,169

876

807


1	China	9,914	21.8%	1.7×	195,635
2	Japan	5,849	12.9%	0.5×	13,978
3	United States	5,618	12.4%	0.7×	10,424
4	South Korea	5,116	11.2%	0.6×	24,118
5	Germany	4,625	10.2%	0.7×	6,562
6	Denmark	3,176	7.0%	1.0×	3,351
7	France	1,556	3.4%	1.0×	2,252
8	Spain	1,169	2.6%	1.9×	1,443
9	Taiwan	876	1.9%	0.6×	2,195
10	United Kingdom	807	1.8%	0.8×	1,079
11	Netherlands	719	1.6%	0.9×	951
12	Switzerland	614	1.3%	0.7×	725
13	Italy	592	1.3%	1.1×	1,002
14	Canada	497	1.1%	1.0×	797
15	Australia	356	0.8%	0.9×	562
16	Austria	350	0.8%	1.2×	437
17	Sweden	341	0.7%	1.0×	410
18	Israel	303	0.7%	1.1×	414
19	Norway	293	0.6%	2.6×	390
20	India	291	0.6%	1.0×	420
21	Türkiye	252	0.6%	1.9×	498
22	Singapore	244	0.5%	1.4×	278
23	Finland	204	0.4%	0.8×	245
24	Belgium	204	0.4%	0.9×	253
25	Poland	144	0.3%	1.1×	922
26	Saudi Arabia	138	0.3%	0.6×	285
27	Russia	115	0.3%	0.6×	912
28	Brazil	104	0.2%	0.9×	430
29	Ireland	68	0.1%	1.1×	83
30	Portugal	56	0.1%	0.6×	89
31	Mexico	53	0.1%	1.0×	238
32	Luxembourg	44	0.1%	1.4×	48
33	South Africa	41	0.1%	1.1×	46
34	Czechia	36	0.1%	2.3×	78
35	Hungary	33	0.1%	0.6×	102
36	Hong Kong	29	0.1%	1.4×	65
37	Malaysia	26	0.1%	1.0×	63
38	New Zealand	25	0.1%	1.1×	37
39	Cayman Islands	11	0.0%	0.2×	23
40	Liechtenstein	3	0.0%	2.0×	4

Applicants

The largest applicants by international patent families, 2015 to 2024: across the world, then within each of the five countries with the most families in Renewable Generation. Names are as held in the source and are not consolidated across subsidiaries.

Global

45,485 international families

SAMSUNG DISPLAY CO LTD · South Korea

VESTAS WIND SYS AS · Denmark

SIEMENS GAMESA RENEWABLE ENERGY AS · Denmark

BOE TECHNOLOGY GROUP CO LTD · China

GEN ELECTRIC · United States

WOBBEN PROPERTIES GMBH · Germany

1,297

1,262

1,185

671

643

537

China

9,914 international families

BOE TECHNOLOGY GROUP CO LTD

WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD

HUAWEI DIGITAL POWER TECH CO LTD

ZHEJIANG JINKO SOLAR CO LTD

BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO LTD

SUNGROW POWER SUPPLY CO LTD

671

466

326

192

189

185

Japan

5,849 international families

PANASONIC IP MAN CO LTD

SHARP KK

KANEKA CORP

TOSHIBA KK

JAPAN DISPLAY INC

TOYOTA MOTOR CORP

324

253

223

213

187

178

United States

5,618 international families

GEN ELECTRIC

GENERAL ELECTRIC RENOVABLES ESPANA SL

SUNPOWER CORP

UNIVERSAL DISPLAY CORP

NEXTRACKER LLC

3M INNOVATIVE PROPERTIES CO

621

195

128

119

South Korea

5,116 international families

SAMSUNG DISPLAY CO LTD

LG DISPLAY CO LTD

SAMSUNG ELECTRONICS CO LTD

LG ELECTRONICS INC

LG CHEMICAL LTD

HANWHA SOLUTIONS CORP

1,236

347

294

240

238

164

Germany

4,625 international families

WOBBEN PROPERTIES GMBH

MERCK PATENT GMBH

SIEMENS AG

1.0% shared · 1,182 families in both

United States

Japan

China

Germany

South Korea

16,120

13,036

11,408

6,357

5,716

Crosswalk

How Renewable Generation is matched to the patent classifications. The entries below were chosen for it; each stands for itself and everything beneath it in the scheme, 704 Cooperative entries in all. A patent family counts when any of its codes, in either scheme and at any office, falls under one of them. Codes since retired are placed under the entries that replaced them.

Entry	Title in the scheme	Why it is chosen	CPC codes	IPC codes	Documents
F03D	Wind motors	Wind turbines	306	72	607,912
H02S	Generation of electric power by conversion of infrared radiation, visible light or ultraviolet light, e.g. using photovoltaic [pv] modules	Photovoltaic power generation systems and mounting	39	38	418,772
H10F19/00	Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules	Photovoltaic modules and assemblies of cells	35	17	180,416
F24S	Solar heat collectors; solar heat systems	Solar heat collectors and concentrating solar systems	432	171	446,805
F03G6/00	Devices for producing mechanical power from solar energy	Mechanical power from solar heat	33	5	25,559
F03G4/00	Devices for producing mechanical power from geothermal energy	Mechanical power from geothermal energy	18	4	13,167
F24T	Geothermal collectors; geothermal systems	Geothermal collectors and systems	24	13	31,736
C12M1/107	Apparatus for enzymology or microbiology with means for collecting fermentation gases, e.g. methane	Biogas digesters collecting fermentation methane	2	2	23,372
C10L5/40	Solid fuels essentially based on materials of non-mineral origin	Solid fuels from biomass	10	5	36,408
Y02E10/10	Geothermal energy	Tagged geothermal energy technologies	1	none	31,050
Y02E10/40	Solar thermal energy, e.g. solar towers	Tagged solar thermal energy technologies	4	none	253,936
Y02E10/50	Photovoltaic [PV] energy	Tagged photovoltaic energy technologies	12	none	942,500
Y02E10/70	Wind energy	Tagged wind energy technologies	6	none	453,166

CPC and IPC codes are the codes in use on patent documents, at any office, that fall under the entry. Documents is the larger of the two schemes' counts of documents carrying one of them. An entry with no IPC codes can be told apart only in the Cooperative scheme.

The Cooperative codes in use that count towards Renewable Generation: 922 codes on 3,354,219 documents. The 150 most used are listed; the full list is in the cpc-to-capability.csv download.

Code	Title	Under entry	How placed	Documents
Y02E10/50	Photovoltaic [PV] energy	Y02E10/50	In the scheme	501,149
Y02E10/72	Wind turbines with rotation axis in wind direction	Y02E10/70	In the scheme	291,580
Y02E10/549	Organic PV cells	Y02E10/50	In the scheme	161,778
Y02E10/40	Solar thermal energy, e.g. solar towers	Y02E10/40	In the scheme	89,206
Y02E10/56	Power conversion systems, e.g. maximum power point trackers	Y02E10/50	In the scheme	83,668
Y02E10/47	Mountings or tracking	Y02E10/40	In the scheme	73,155
Y02E10/44	Heat exchange systems	Y02E10/40	In the scheme	69,411
Y02E10/52	PV systems with concentrators	Y02E10/50	In the scheme	53,248
Y02E10/547	Monocrystalline silicon PV cells	Y02E10/50	In the scheme	44,423
Y02E10/728	Onshore wind turbines	Y02E10/70	In the scheme	44,227
Y02E10/74	Wind turbines with rotation axis perpendicular to the wind direction	Y02E10/70	In the scheme	43,070
Y02E10/76	Power conversion electric or electronic aspects	Y02E10/70	In the scheme	38,782
F03D9/25	Wind motors characterised by the driven apparatus the apparatus being an electrical generator	F03D	In the scheme	35,033
H10F19/80	Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells	H10F19/00	In the scheme	32,847
Y02E10/542	Dye sensitized solar cells	Y02E10/50	In the scheme	32,293
Y02E10/10	Geothermal energy	Y02E10/10	In the scheme	31,050
H02S20/30	Supporting structures being movable or adjustable, e.g. for angle adjustment	H02S	In the scheme	26,911
Y02E10/727	Offshore wind turbines	Y02E10/70	In the scheme	24,484
F03D13/20	Arrangements for mounting or supporting wind motors; Masts or towers for wind motors	F03D	In the scheme	24,201
F03D17/00	Monitoring or testing of wind motors, e.g. diagnostics	F03D	In the scheme	22,923
H10F19/00	Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules	H10F19/00	In the scheme	22,811
Y02E10/46	Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines	Y02E10/40	In the scheme	22,164
F03D1/0675	Rotors characterised by their construction elements of the blades	F03D	In the scheme	21,746
H02S20/32	Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking	H02S	In the scheme	21,285
F03D80/00	Details, components or accessories not provided for in groups F03D1/00 - F03D17/00	F03D	In the scheme	19,595
H02S20/23	Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures	H02S	In the scheme	17,868
Y02E10/541	CuInSe2 material PV cells	Y02E10/50	In the scheme	17,667
F03D80/70	Bearing or lubricating arrangements	F03D	In the scheme	17,481
H10F19/804	Materials of encapsulations	H10F19/00	In the scheme	17,467
F03D7/0224	Adjusting blade pitch	F03D	In the scheme	17,441
F03D13/10	Assembly of wind motors; Arrangements for erecting wind motors	F03D	In the scheme	17,424
H02S30/10	Frame structures	H02S	In the scheme	17,122
Y02E10/548	Amorphous silicon PV cells	Y02E10/50	In the scheme	17,058
H02S50/00	Monitoring or testing of PV systems, e.g. load balancing or fault identification	H02S	In the scheme	16,241
H02S40/10	Cleaning arrangements	H02S	In the scheme	16,073
H02S50/10	Testing of PV devices, e.g. of PV modules or single PV cells	H02S	In the scheme	14,852
H02S40/38	Energy storage means, e.g. batteries, structurally associated with PV modules	H02S	In the scheme	14,682
H10F19/902	Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers for series or parallel connection of photovoltaic cells	H10F19/00	In the scheme	14,428
H02S40/34	Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes	H02S	In the scheme	14,222
Y02E10/544	Solar cells from Group III-V materials	Y02E10/50	In the scheme	14,222
F03D13/25	Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation	F03D	In the scheme	14,169
H02S20/00	Supporting structures for PV modules	H02S	In the scheme	14,068
F24S30/425	Horizontal axis	F24S	In the scheme	13,609
F03D15/00	Transmission of mechanical power	F03D	In the scheme	13,442
H10F19/85	Protective back sheets	H10F19/00	In the scheme	12,500
H02S40/22	Light-reflecting or light-concentrating means	H02S	In the scheme	12,410
F24S20/20	Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants	F24S	In the scheme	12,145
Y02E10/70	Wind energy	Y02E10/70	In the scheme	11,023
F03D80/50	Maintenance or repair	F03D	In the scheme	10,799
H02S40/32	Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules	H02S	In the scheme	10,652
F03D9/11	Combinations of wind motors with apparatus storing energy storing electrical energy	F03D	In the scheme	10,385
H02S20/10	Supporting structures directly fixed to the ground	H02S	In the scheme	10,245
F24S50/20	Arrangements for controlling solar heat collectors for tracking	F24S	In the scheme	10,214
H02S30/20	Collapsible or foldable PV modules	H02S	In the scheme	9,842
H02S40/44	Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time	H02S	In the scheme	9,732
H10F19/904	Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers for series or parallel connection of photovoltaic cells characterised by the shapes of the structures	H10F19/00	In the scheme	9,691
F03D7/0204	Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction	F03D	In the scheme	9,125
F03D3/005	Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor the axis being vertical	F03D	In the scheme	9,026
H02S40/30	Electrical components	H02S	In the scheme	8,919
F03D15/10	Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members	F03D	In the scheme	8,869
C10L5/44	Solid fuels essentially based on materials of non-mineral origin on vegetable substances	C10L5/40	In the scheme	8,647
Y02E10/546	Polycrystalline silicon PV cells	Y02E10/50	In the scheme	8,519
F03D9/255	Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor	F03D	In the scheme	8,134
F03D7/048	Automatic control; Regulation by means of an electrical or electronic controller controlling wind farms	F03D	In the scheme	7,866
F03D1/0658	Arrangements for fixing wind-engaging parts to a hub	F03D	In the scheme	7,845
F24S23/74	Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces	F24S	In the scheme	7,611
H02S10/40	Mobile PV generator systems	H02S	In the scheme	7,592
H10F19/31	Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules comprising thin-film photovoltaic cells having multiple laterally adjacent thin-film photovoltaic cells deposited on the same substrate	H10F19/00	In the scheme	7,546
H02S10/12	Hybrid wind-PV energy systems	H02S	In the scheme	7,471
F03D3/062	Rotors characterised by their construction elements	F03D	In the scheme	7,456
F24S20/67	Solar heat collectors integrated in fixed constructions, e.g. in buildings in the form of roof constructions	F24S	In the scheme	7,415
F03D7/042	Automatic control; Regulation by means of an electrical or electronic controller	F03D	In the scheme	7,344
H02S40/36	Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection	H02S	In the scheme	7,306
H10F19/90	Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers	H10F19/00	In the scheme	7,261
H02S30/00	Structural details of PV modules other than those related to light conversion	H02S	In the scheme	6,992
F03D7/00	Controlling wind motors	F03D	In the scheme	6,872
F03D13/40	Arrangements or methods specially adapted for transporting wind motor components	F03D	In the scheme	6,761
F03D80/60	Cooling or heating of wind motors	F03D	In the scheme	6,746
F24S23/70	Arrangements for concentrating solar-rays for solar heat collectors with reflectors	F24S	In the scheme	6,699
F03D9/007	Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with means for converting solar radiation into useful energy	F03D	In the scheme	6,687
F03D1/04	Wind motors with rotation axis substantially parallel to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels	F03D	In the scheme	6,621
F03D13/22	Foundations specially adapted for wind motors	F03D	In the scheme	6,616
H10F19/908	Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers for series or parallel connection of photovoltaic cells for back-contact photovoltaic cells	H10F19/00	In the scheme	6,531
H10F19/807	Double-glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets	H10F19/00	In the scheme	6,495
F03D1/0633	Rotors characterised by their aerodynamic shape of the blades	F03D	In the scheme	6,380
F03D3/061	Rotors characterised by their aerodynamic shape, e.g. aerofoil profiles	F03D	In the scheme	6,356
F24S10/45	Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical	F24S	In the scheme	6,323
F24S60/30	Arrangements for storing heat collected by solar heat collectors storing heat in liquids	F24S	In the scheme	6,291
F03D7/0284	Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power in relation to the state of the electric grid	F03D	In the scheme	6,011
F24S80/30	Arrangements for connecting the fluid circuits of solar collectors with each other or with other components, e.g. pipe connections; Fluid distributing means, e.g. headers	F24S	In the scheme	5,999
F03D9/32	Wind motors specially adapted for installation in particular locations on moving objects, e.g. vehicles	F03D	In the scheme	5,983
H02S40/425	Cooling means using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation	H02S	In the scheme	5,957
C10L5/46	Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse	C10L5/40	In the scheme	5,843
F03D9/257	Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor the wind motor being part of a wind farm	F03D	In the scheme	5,760
H10F19/906	Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers for series or parallel connection of photovoltaic cells characterised by the materials of the structures	H10F19/00	In the scheme	5,593
F24S25/61	Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing to the ground or to building structures	F24S	In the scheme	5,566
F03D3/02	Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor having a plurality of rotors	F03D	In the scheme	5,458
F03D80/30	Lightning protection	F03D	In the scheme	5,434
H02S10/00	PV power plants; Combinations of PV energy systems with other systems for the generation of electric power	H02S	In the scheme	5,391
F24S30/452	Vertical primary axis	F24S	In the scheme	5,390
H10F19/30	Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules comprising thin-film photovoltaic cells	H10F19/00	In the scheme	5,305
H02S20/26	Building materials integrated with PV modules, e.g. façade elements	H02S	In the scheme	5,304
F03D1/06	Rotors	F03D	In the scheme	5,290
Y02E10/543	Solar cells from Group II-VI materials	Y02E10/50	In the scheme	5,277
H02S40/00	Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00	H02S	In the scheme	5,260
H02S20/25	Roof tile elements	H02S	In the scheme	5,237
F03D7/06	Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor	F03D	In the scheme	4,937
C10L5/442	Wood or forestry waste	C10L5/40	In the scheme	4,896
F03D1/065	Rotors characterised by their construction elements	F03D	In the scheme	4,844
F24S23/30	Arrangements for concentrating solar-rays for solar heat collectors with lenses	F24S	In the scheme	4,822
F24S25/10	Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface	F24S	In the scheme	4,805
F03D9/28	Wind motors characterised by the driven apparatus the apparatus being a pump or a compressor	F03D	In the scheme	4,804
C10L5/445	Agricultural waste, e.g. corn crops, grass clippings, nut shells or oil pressing residues	C10L5/40	In the scheme	4,751
F24S10/70	Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits	F24S	In the scheme	4,737
H02S20/22	Supporting structures directly fixed to an immovable object specially adapted for buildings	H02S	In the scheme	4,725
F24T10/10	Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground	F24T	In the scheme	4,583
F03D7/0296	Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor to prevent, counteract or reduce noise emissions	F03D	In the scheme	4,577
F03D80/40	Ice detection; De-icing means	F03D	In the scheme	4,532
F24S25/65	Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for coupling adjacent supporting elements, e.g. for connecting profiles together	F24S	In the scheme	4,478
F24S25/20	Peripheral frames for modules	F24S	In the scheme	4,473
F24S40/20	Cleaning; Removing snow	F24S	In the scheme	4,437
F03D7/0276	Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling rotor speed, e.g. variable speed	F03D	In the scheme	4,431
F24S25/70	Arrangement of stationary mountings or supports for solar heat collector modules with means for adjusting the final position or orientation of supporting elements in relation to each other or to a mounting surface; with means for compensating mounting tolerances	F24S	In the scheme	4,425
H02S10/20	Systems characterised by their energy storage means	H02S	In the scheme	4,364
F24S60/00	Arrangements for storing heat collected by solar heat collectors	F24S	In the scheme	4,361
F03D9/00	Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations	F03D	In the scheme	4,336
F03D7/02	Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor	F03D	In the scheme	4,330
F03D7/028	Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power	F03D	In the scheme	4,317
F03D7/04	Automatic control; Regulation	F03D	In the scheme	4,290
F24S23/77	Arrangements for concentrating solar-rays for solar heat collectors with reflectors with flat reflective plates	F24S	In the scheme	4,282
H02S10/10	PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems	H02S	In the scheme	4,218
F24S25/12	Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface using posts in combination with upper profiles	F24S	In the scheme	4,165
H02S20/20	Supporting structures directly fixed to an immovable object	H02S	In the scheme	4,074
H10F19/33	Patterning processes to connect the photovoltaic cells, e.g. laser cutting of conductive or active layers	H10F19/00	In the scheme	4,012
H10F19/35	Structures for the connecting of adjacent photovoltaic cells, e.g. interconnections or insulating spacers	H10F19/00	In the scheme	4,009
F24S25/13	Profile arrangements, e.g. trusses	F24S	In the scheme	4,001
F24S25/636	Clamps; Clips clamping by screw-threaded elements	F24S	In the scheme	3,981
F24S23/71	Arrangements for concentrating solar-rays for solar heat collectors with reflectors with parabolic reflective surfaces	F24S	In the scheme	3,945
F24S20/66	Solar heat collectors integrated in fixed constructions, e.g. in buildings in the form of facade constructions, e.g. wall constructions	F24S	In the scheme	3,935
F24S23/79	Arrangements for concentrating solar-rays for solar heat collectors with reflectors with spaced and opposed interacting reflective surfaces	F24S	In the scheme	3,836
F03D7/0272	Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor by measures acting on the electrical generator	F03D	In the scheme	3,773
F24T10/20	Geothermal collectors using underground water as working fluid; using working fluid injected directly into the ground, e.g. using injection wells and recovery wells	F24T	In the scheme	3,707
H02S40/42	Cooling means	H02S	In the scheme	3,673
F24S23/31	Arrangements for concentrating solar-rays for solar heat collectors with lenses having discontinuous faces, e.g. Fresnel lenses	F24S	In the scheme	3,643
F03D1/02	Wind motors with rotation axis substantially parallel to the air flow entering the rotor having a plurality of rotors	F03D	In the scheme	3,627
F03D1/00	Wind motors with rotation axis substantially parallel to the air flow entering the rotor	F03D	In the scheme	3,618
F24S70/225	Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption for spectrally selective absorption	F24S	In the scheme	3,610
F03D7/043	Automatic control; Regulation by means of an electrical or electronic controller characterised by the type of control logic	F03D	In the scheme	3,552
F03D7/0264	Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations	F03D	In the scheme	3,542
F24S50/40	Arrangements for controlling solar heat collectors responsive to temperature	F24S	In the scheme	3,523

Match: Direct

The capability is itself a technology or a kind of physical system, and the classification names it. F24S includes domestic solar water heating; individual solar cell design (H10F10/00) is left to Critical Technology. The crosswalk is a first pass that nobody has reviewed.

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