Solar power and energy efficiency:
we provide a wide range of expertise at the cutting edge of technology

Photovoltaics

Photovoltaic plants

Consulting

We advise authorities, firms and power supply companies on the development and realization of photovoltaic power systems and on improving energy efficiency.

  • Photovoltaic potential estimation
  • Feasibility study
  • Financier opportunities (possibilities with Zürichsee Solarstrom AG)
  • Possible subsidies
  • Analysis of own-consumption
  • Coordination of electricity production and consumers (TNCALL)

Planning

We plan medium-sized and large photovoltaic systems on existing used areas such as roofs, noise barriers alongside highways and railroads, or wherever spaces are conducive for solar power and it makes sense ecologically and economically.

  • Project designing
  • Detailed planning
  • Announcement
  • Offer analysis
  • Submission
  • Contracts

Realize

We realize your photovoltaic system and are also available to you competently in operation:

  • Site management
  • Execution supervision
  • Quality assurance
  • Acceptance and control measurements
  • Monitoring with remote monitoring
  • Control bills electricity production

Photovoltaic projects

2018
2 PV plants Langnau a.A.

125 kWp

2014
PV plants horgen

7 PV plants, 224 kWp

2014
VBZ Tramdepot Irchel

200 kWp

2014
Barn roof Uetikon a.S.

78 kWp

2012
PV plants at school Erlenbach

3 roof top plants and 1 facade, 195 kWp

2009
AMAG Buchs, Zurich

190 kWp

2007
Swissmill Zurich

120 kWp

2004
Swissmill Basel

50 kWp

2001
Low-energy-house Erlenbach

thermal solar 22% heat/59% warm water, PV plant 2 kWp

2000
Freilager Zurich

270 kWp for the ewz stock exchange

2000
PV plant Magadino

100 kWp along the railway Bellinzona-Locarno. The elevation of the modules also serves as a supporting structure for a remote steam line, but not as sound insulation.

1992
Sonnenhof Bern

24 kWp

Building integration

Roofs and facades are ideal carriers for photovoltaic power plants.

Projects

1999
Cantonal school Stadelhofen
1996
Swissmill Zurich
2004
GISS Gebäude-Integrierte Solarstrom-Systeme

PV noise barriers

Noise barriers along roads and rails provide ideal surfaces for photovoltaic systems without consuming additional land. Thanks to the bifacial technology, almost all road suitable for PV.

In many sound barriers photovoltaic can be retrofitted. Economically, it makes sense to include photovoltaics directly in the planning of new sound barrier systems or renovations

The photovoltaic modules can be integrated directly into the noise barrier and at the same time can also take over the sound insulation function. Partially transparent PV sound barriers are also possible today.

With the world’s first PV noise barrier on the A13 near Chur in 1989, TNC has a wealth of experience and has since designed and implemented several PV noise barriers.

Projects

2014

PV Schallschutzanlage, Forchstrasse Zumikon, ca. 80 kWp.

1997

Weltweit erste PV Schallschutzanlage entlang der Bahn in Wallisellen, Zürich, 10 kWp, Schweizer Solarpreis 1999
Flyer PV Schallschutz Wallisellen (PDF)

1995

Die zweite PV Schallschutzanlage entlang der A2 bei Giebenach, 100 kW

1989

weltweit erste PV Schallschutzanlage 100 kWp, A13 Domat/Ems bei Chur

Bifacial PV

Bifacial cells are on both sides photosensitive solar cells, which are placed vertically in the north-south direction. Based on a module that has the same efficiency on both sides, a bifacial module achieves an annual yield of almost 100% of a standard module with optimum alignment.

Bifacial for PV noise barrier

Bifacial technology is particularly suitable for use in sound barrier systems with reflective sound insulation. The fact that no bevelled parts are necessary, there are no conflicts with traffic, the statistic is easier and the space required less.

As TNC calculated in the European PV Power Potential Study, the potential for using bifacial technology in Western Europe is around 1200 MW.

Projects

1997

weltweit erste bifacial Schallschutzanlage bei Wallisellen/Zürich, 10 kWp Pilotanlage.

2009

Weltweit erste Bifacial Schallschutzanlage Bahnhofbereich Münsingen inkl. Messkampagne

PV operation

We offer technical and commercial management for larger PV plants and PV investment organizations.

Plant monitoring and yield control

  • Establishment of monitoring
  • Control of yields
  • Control of the yield guarantees according to the contract of employment
  • Comparison of the settlements to the compensation
  • Accompaniment authorized maintenance company

Debt collection and refinancing

  • Control compensation and monitoring of tariffs
  • Quarterly compilation and preparation of billing for the ecological added value and further financing
  • Control of correspondence with electricity customers
  • Control billing process PV self-consumption
  • Possible optimization on demand

Operating fault

  • Professional initial evaluation
  • Commissioning of the repairing
  • If necessary, solicitation of offers and application
  • Enforcement and control of work
  • Settlement with the insurance

Waterlily

HydroSun promotes the fast development of renewable electricity production and combines hydropower and floating photovoltaic systems to actual hybrid power plants. We focus an clean and sustainable energy production. The synergy potential of the energy sources sun and water will be fully exploited. HydroSun will significantly increase or even double the capacity of hydropower plants. The idea of combining floating photovoltaic and hydropower for electricity production was patented by TNC in 2009.

Concept

By combining PV with hydropower, HydroSun can deliver balanced power throughout the year. On fine days, the capacity of the hydroelectric power plant can be more than doubled. the solar-generated electricity yield reduces the water consumption of the hydroelectric power plant, so that dammed water volumes are available for low-sun days and nights.

Feasibility

Hydroelectric power plants have already been developed for transport purposes and have electrical and technical infrastructures to feed solar power in the grid. The power production of the depreciated hydropower can be sustainably increased, without increasing the dam walls. Due to the underwater arrangement of the floats and the open over-construction, a large-area cover of the lake surface will be let.

Potential

HydroSun is not about floating PV systems on public lakes but on already artificial reservoirs. But even here the potential is huge. A first potential estimate for Switzerland shows a technical potential of 2.5 GW of power and an annual yield of 2.6 TWh, without additional land use, through innovation!

Aerial images

Luftaufnahmen an der Forchstrasse in Zumikon ZH Foto Emanuel Ammon for TNC

Luftaufnahmen an der Forchstrasse in Zumikon ZH Foto Emanuel Ammon for TNC

Luftaufnahmen VBZ Tramdepot Irchel Foto Emanuel Ammon for TNC

Luftaufnahmen VBZ Tramdepot Irchel Foto Emanuel Ammon for TNC