More sustainable thermosolar plants thanks to the hybridization with biomethane

May 27, 2014
The termosolar plant of Manchasol. Credit: Hysol.

The integration of biomethane in concentrating solar thermal power plants would facilitate the commercial introduction of concentrating solar power (CSP) technology in the energy market, reducing both financial and environmental costs. Researchers belong to the European consortium of the Hysol project, who is led by the ACS-Cobra company, with the participation of Universidad Politécnica de MadridUniversidad Politécnica de Madrid (UPM) researchers. Currently, they are studying the integration process of biomethane. In order to conduct the validation of this process, this project is expected to build a pre-industrial plant located at the cluster of thermosolar innovation of Manchasol.

Sun is a free, renewable energy resource that can be used for large-scale electricity production. When using CSP technology, extremely high temperatures (400-1000 ºC) are reached which can move thermodynamic cycles similar to that are used in conventional power .

Spain is a pioneering country in the technological and commercial development of CSP technology, with 48 operating plants of 2204 Wme of capacity. United States has 20 thermosolar plants (956 MWe) and other countries with access to optimal solar resources (China, India, Israel, Mexico, South Africa, Algeria, Egypt, Morocco, Australia, Chile, etc) have commercial plants or are under construction. The International Energy Agency (IEA) expects a large increase in the contribution of this technology for the worldwide electrical production with a capacity of 147 GW by 2020 and 1089 GW by 2050.

A big issue of CSP technology is that electrical generation depends on solar cycles, seasonal cycles and weather conditions. In order to increase the capacity and the power production control, these types of plants usually have thermal storage systems based on the usage of fossil fuels, mainly natural gas. The combustion of natural gas in simple cycles, such as the ones used in conventional power plants, can achieve reduced energy efficiency and can considerably increase the carbon footprint of the plant.

The ability to hybridize solar energy with other such as biomethane considerably improves the financial viability of this technology, allowing a production of 100% . Gas consumption from (biogas, biomethane or syngas) makes possible the usage of combined cycle technologies which are more efficient, sustainable and competitive.

The Spanish company ACS-Cobra is leading the Hysol European project (Innovative Configuration of a Fully Renewable Hybrid CSP Plant, FP7-Energy-2012-1. CP 308912), that aims to develop a new concept of a thermosolar/biomethane hybrid plant. This project involves the development, construction, operation and optimization of a pre-industrial infrastructure that will be based in the cluster of thermosolar innovation of Manchasol owned by ACS-Cobra. This facility will allow the research of biomass fuels integration in the gas phase (biogas, biomethane or syngas) at pre-industrial scale. This project will also be used as initial phase to verify and make financeable the technology in the market.

Explore further: NREL report finds similar value in two concentrating solar power technologies

add to favorites email to friend print save as pdf

Related Stories

Video: Forecasting desert storms to empower solar panels

May 09, 2014

Solar energy is ever more becoming an important source of renewable power generation. A serious problem for the productivity of solar power plants is desert dust: it obscures the sun and makes the mirrors dirty. To prevent ...

Research uses mirrors to make solar energy cost competitive

Apr 16, 2013

If the current national challenge to make solar energy cost competitive with other forms of energy by the end of this decade is met, Ranga Pitchumani, the John R. Jones III Professor of Mechanical Engineering at Virginia ...

Renewable sources can provide stable power

Dec 02, 2013

Renewable energy sources - an area in which Germany is a leader - are becoming increasingly important for the worldwide power mix. Nevertheless, experts are still deliberating which market model is best for ...

Recommended for you

The state of shale

Dec 19, 2014

University of Pittsburgh researchers have shared their findings from three studies related to shale gas in a recent special issue of the journal Energy Technology, edited by Götz Veser, the Nickolas A. DeCecco Professor of Che ...

Website shines light on renewable energy resources

Dec 18, 2014

A team from the University of Arizona and eight southwestern electric utility companies have built a pioneering web portal that provides insight into renewable energy sources and how they contribute to the ...

Better software cuts computer energy use

Dec 18, 2014

An EU research project is developing tools to help software engineers create energy-efficient code, which could reduce electricity consumption at data centres by up to 50% and improve battery life in smart ...

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

TheGhostofOtto1923
1 / 5 (1) May 27, 2014
Here's an even more peculiar symbiosis:

"Andrea Rossi
May 25th, 2014 at 7:14 AM
Steven N. Karels:
We are making vast R&D regarding couplings with solar plants. I cannot talk about particulars, due to the necessity to avoid pre- publication of patents in course of application.
Warm Regards,
A.R."

"As we've discussed before here, solar power could certainly be a source of energy that could be used to 'drive' E-Cats, either using PV cells to produce electricity, or direct thermal energy — since a heat source is needed to initiate and control the E-Cat reaction [per regulatory reqts]."

-The results of the long-range validation tests are due out in a few weeks. Are you holding your breath?

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.