PowerPipe hybrid solar collector

It is the goal of the PowerPipe project to develop a hybrid solar panel that will integrate the properties of
solar panels and solar cells in the same unit and thereby be able to supply a household with both hot
water and electrical power. The project outcome will be a hybrid solar panel on 2,2 m2 that will produce
hot water and up to 400 electrical watt, and will give a ROI of less than 10 years.

The project Hybrid Solar Panel aims to develop a unique version of a flat solar collector with integrated thermoelectric generators (called TEG) cells, so that the production of domestic hot water and heating water can be combined with power generation. The goal of the project was to develop and demonstrate a hybrid solar panel that can produce hot water and electricity with a payback period not exceeding 10 years when the unit is used in a single-family house.
Project description

The successfull project will deliver a hybrid solar panel of 2,2 m2 that will be able to produce hot water and up to 400 watt per hour. A full hybrid solar panel system will supply the household with 80% of its need for hot water and 50% of its need for electricity, and give a returnon investment in less than 10 years.

The objective of the PowerPipe project is to integrate the so-called  thermo electrical generators (TEGs9 into hot water producing solar panels. TEG cells use the excess heat from the solar panels, that otherwise would be wated, to produce electrical power. In this way each household will have solar panels on the roof that make hot water for utilitu and heating, and when the demand for hot water in the house is met the TEGs in the same panels will start producing electricity using the solar heat.

Results
The project can not be directly commercialized. The mechanical design of the hybrid solar collector was more complex than previously thought. It is mainly due to problems with the installation of TEG'erne directly on the collector absorber and because of the need to substantially greater thickness of the absorber. In addition, the simulations showed that the effectiveness of the collector were quite low at the driftstemperartur which was necessary to obtain optimum performance from TEG'erne.

The project was subsequently redefined to  to develop, build and test a so-called hybrid heat exchanger instead, which can convert the absorbed heat in the collector directly into electricity, but which is not physically integrated with the collector. The hybrid solar collector has been tested with a positive result. There remains a multi-annual development before the technology can honor ready for the market

Key figures

Period:
2012 - 2014
Funding year:
2012
Own financial contribution:
4.38 mio. DKK
Grant:
5.35 mio. DKK
Funding rate:
55 %
Project budget:
9.73 mio. DKK

Category

Oprindelig title
PowerPipe hybrid solfanger
Programme
EUDP
Technology
Solar
Project type
Udvikling
Case no.
64012-0155

Dokumenter

Participants

POWERPIPE ApS (Main Responsible)
Partners and economy
Partner Subsidy Auto financing
POWERPIPE ApS 1,95 mio. DKK 2,47 mio. DKK
BATEC SOLVARME A/S 0,74 mio. DKK 1,22 mio. DKK
1st Mile ApS 0,24 mio. DKK 0,26 mio. DKK
Danmarks Tekniske Universitet (DTU) 0,44 mio. DKK 0,08 mio. DKK
Danmarks Tekniske Universitet (DTU) 1,99 mio. DKK 0,35 mio. DKK

Contact

Kontakperson
Niels Lindeburg
Comtact information

Projektleder Lisa Jørgensen
E-mail: lisa@1stmile.dk
Telefon(Phone): 42659009

Contact email
nl@nielslindeburg.dk

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