Power-to-Gas will help to increase the use of Renewable Energy

The PENTAGON Project investigates the potential of an energy management platform for a new generation of eco-districts

As part of the energy plan set by the European Union, the penetration of Renewable Energy Sources (RES) needs to be drastically increased in the next few years.

Given the inherent intermittent nature of RES production, a significant increase in renewables could cause further stress to the existing electrical grid. This in itself poses risks which can be solved by adding flexibility to electric loads, installing significant smart storage equipment and taking advantage of energy conversion.

It is to be noted that since 1990, emissions within the energy sector have decreased by 29%, due mainly to increasing shares of RES and fuel switching.

The PENTAGON project investigates the potential of wider deployment of energy conversion technologies and strategies at a district level. The project’s coordinator explains the Pentagon project in more detail and gives us a better idea of the main principle of the Power-to-gas technology.

What is the problem PENTAGON is trying to solve?

The PENTAGON project aims to dramatically increase district level energy flexibility capabilities by allowing for the integration of greater share of renewables at local and medium voltage grid level and catalysing the achievement of the EU target.

Furthermore, the PENTAGON Power-to-gas technology and energy management platform will be ready to integrate the market within five years after the project ends in November 2019. This on itself promises to provide significant impact for the better for future generations in Europe.

What is involved in the Power-to-Gas (P2G) process?

The principle is based on the storage of surplus energy from renewable sources, through converting it to hydrogen or methane syngas. The existing natural gas pipeline networks can also carry the resulting hydrogen and/or methane, facilitating the storage and transportation of these gases, which can then be blended with natural gas.

With increasing renewable shares, P2G could prove to be a valuable tool in delivering economic benefits to end users.

Source: IET Institute for Energy Technology

Does it require a high investment from governments and companies?

Despite requiring higher investment for the technology development and having a lower efficiency compared to Power-to-Hydrogen plants, Power-to-Methane systems represents a more promising solution due to the following main advantages:

1. Compression of hydrogen to a certain pressure requires considerably more energy than methane. Furthermore, when used for mobility, hydrogen has to be compressed to a much higher pressure of 700 bar than methane, which is stored at 200 bar. This leads to further losses when compressing hydrogen and compensates part of the additional energy loss in a Power-to-Methane plant.

2) When it comes to practical application, a Power-to-Methane plant has the advantage of being able to exploit the existing gas grid to distribute and store the gas; the gas grid can also provide redundancy for critical applications.

What impact will PENTAGON have for future generations?

Our project will pave the way for a new era of smarter eco-districts that allow extensive renewable production based on innovative technologies and an advanced multi-scale energy management platform.

This technological breakthrough will be supplemented by an assessment of the regulatory and business drivers which will lead to a successful deployment of PENTAGON compliant eco-districts all over Europe and beyond.

Want to find out more, get in touch or sign up to receive our newsletter? Visit www.pentagon-project.eu and follow us on Twitter and LinkedIn

Nigeria project: progress

Work continues as Exergy Ltd installs solar PV rooftop system in Kaduna, Nigeria. Working with our local installation team inside Nigeria, the solar panels have been installed using a special mounting frame suited to this type of roof.
Now this is complete, the next stage is to connect the remaining components to the rest of the system. This includes the inverters, charge controllers and the batteries. During the day the solar energy will be stored in the batteries and the energy will be used to power the lighting loads inside the building.
Once the system is connected it will be tested and commissioned by our team and declared ready for the building owners to use safety. Then our client can start producing their own electricity from renewable sources and reduce their reliance on diesel generators.

Exergy attends to RESSEEPE Project´s Annual Meeting in Barcelona

Exergy attended to RESSEEPE Project´s Annual Meeting on the 8th, 9th and 10th of July in Barcelona, Spain. Exergy is the Technical Coordinator in this project consists of 25 partners from different european countries.
The meeting was organised by CST. The first day was focused on Demo Sites and the Consortium Members visited the Spanish hospitals which are participating as demo sites, Terrassa Hospital and Parc Tauli Hospital Centre.
Each partner demonstrator presented their proposals for intervention on each of their buildings based on a number of criteria (budget, technology, building type, climate) and after that, exchanged their views about plans to address the works.
During the second day, the PTA (Project Technical Assistant), Carlos Bello, joined the meeting to follow up with the RESSEEPE Project so far. A review of each of the Work Packages was done, checking the status of each of the tasks (delays, changes, deliverables).
Following the presentations by Work Package leaders, Exergy organised different WP grouped meetings in order to face the next steps regarding the 18 month meeting. Also, demonstrators met different groups (thermal isolation strategiessolar, lighting and HVAC strategies, Design and Building Technologies) for advice, and to ask for information and new requirements.
Exergy remarked the importance of having a shortlist of technologies, simulations of different scenarios, decision making processes and work plans for the implementation and validation of work by end of July 2014.
+ RESSEEPE Annual Meeting Gallery