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Dienstag, 20. Februar 2018

11.CEB® Energie-Effizienz-Messe interCOGEN®, Deutschlands Kraft-Wärme-Kopplungs-Messe WTT-Expo® Fachmesse für industrielle Wärme- und Kältetechnik

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27. - 28. Juni
Messe Karlsruhe

...Technologien & Konzepte der

Sehr geehrte Damen und Herren
Energieeffizienz bietet ein immenses Potenzial, Kosten zu sparen, Prozesse zu optimieren und die Wettbewerbsfähigkeit zu verbessern. Kraft-Wärme-Kopplung ermöglicht in vielen Bereichen eine deutliche Effizienz-Steigerung und spielt für die zukünftige Energieversorgung eine unverzichtbare Rolle.

Am 27. und 28. Juni informiert in der Messe Karlsruhe das Messetrio:
rund um hochaktuelle Entwicklungen im Energiebereich.

Energieeffiziente Wohn- und Nichtwohngebäude, Gebäudetechnik, Energiemanagement, Industrielle Wärme- und Kältetechnik, Wärmetauscher sowie entsprechende Komponenten, Instandhaltung und Reinigung im Sinne der TGA von Industrie- und Gewerbebauten sowie KWK-Technologien, Anlagen- und Komponenten-Zubehör, Dienstleistungen, Flexibilisierung und Digitalisierung, Innovationen sowie die Einbindung der KWK im zukünftigen Energiesystem sind die Themen der Messe.

135 Aussteller, 550 Kongressteilnehmer und 1.500 Fachbesucher werden erwartet.

Seien Sie mit dabei!

Mit freundlichen Grüßen

ppa. Diana Röhm
Projektleitung & Vertrieb
Miriam Hegner
Senior PR Manager

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Centralized solar trackers with 6.7% lower LCOE

Centralized solar trackers with 6.7% lower LCOE

2/15/18, 11:04 AM -
TÜV Rheinland recently presented an independent analysis about the durability and reliability of different solar tracker architectures. It took into account extreme weather conditions as in the MENA region. 
t is expected that trackers will reach almost a 50% share of ground-mount PV installations until 2021. A TÜV Rheinland report compares the different solar tracker architectures.
It is expected that trackers will reach almost a 50% share of ground-mount PV installations until 2021. A TÜV Rheinland report compares the different solar tracker architectures.
The report found that a centralized rotary-drive tracker architecture delivers an LCOE of 2.75 cents/kWh for a 100 MW solar array, while a decentralized architecture can only achieve 2.94 cents/kWh, this is 6.7% lower. Calculated over a 30-year expected PV array lifetime, that amounts to LCOE savings of $12.41 million.

Central tracker architecture with lower maintenance costs

This is due largely to lower scheduled and unscheduled maintenance costs. The study further shows how the centralized system’s resilience to environmental risks leads to an increase in a project’s profitability and to long-term investment security.
The analysis was delivered in a first-of-its-kind independent report in which different solar tracker architectures were assessed regarding their durability and reliability. It took into account the extreme heat and strong winds that are prevalent in the Middle East and other parts of the MENA region. The report highlighted these unique environmental challenges facing utility-scale solar projects in the region and the crucial importance of minimizing O&M.
Solar tracker with central architecture.

Consider 0&M costs when selecting components

 “It’s crucial that project developers and EPCs begin to look at the importance of O&M costs when it comes to component selection,” said Array Technologies Executive Chairman, Brad Forth, when presenting the report. “The risks inherent to some tracker systems are significant and can have a massive impact on a project’s viability as well as profitability over 20 or 30 years.”
Key takeaways from the report findings include:
- centralized trackers have fewer motors and electrical components, thereby requiring less scheduled and unscheduled maintenance;
- the electrical components deployed in decentralized systems, including lithium-ion battery packs, can be prone to failure in the field, particularly when operating in high temperatures (HCN).
Read more about solar modules

Solar advice: Run heat pumps on solar energy!

Solar advice: Run heat pumps on solar energy!

2/15/18, 5:00 PM -
When building a new home, the house builders also have the opportunity to design the heating system exactly to their needs.
PV and heat pumps are often offered in suitable kits.
On the whole, there are two periods during the year when the warmth inside the house is of consequence. During the summer and the warmer weeks in spring the heating is off. In the transitional period, some heating is needed to maintain a comfortable temperature.
It is only during the cold weeks that the heating system is truly needed. Our latitudes see really severe sub-zero temperatures only on a few days of the year.

A hybrid solution is the better choice

As fully electric heating systems are still very expensive, it is recommended to go for a hybrid solution: Heat pumps use electricity to concentrate the thermic potential of the outside air, the ground or the ground water, and turn it into usable heat. Again, it is recommended to run the pumps off the solar generator on your roof.
Initially it is most important to insulate the house correctly. The heating demand depends on how much heat is lost through the outside walls, the roof and the cellar (if available). The heating system will also need to be able to cope with losses as a result of ventilation.

Easy to install

Generally speaking, air-heating pumps should be the first choice, because they are inexpensive to buy and easy to install. If more heating capacity in required, it is better to go for a geothermal heat pump. As long as there is sufficient solar electricity coming off the roof, you can run the heat pump on that. Otherwise, use green electricity from the grid. (HS)
Look at this, too:
Solar advice: Generate hot water electrically!

Nissan Sees 2025 As Turning Point for Electric Cars

Nissan Sees 2025 As Turning Point for Electric Cars

Editor's Take: I am watching closely how the U.K. and EU are approaching Electric Vehicles (EVs). I see more news coming out of that region about plans for more charging stations, greater market adoption, government incentives for EVs than I do from any other region. The Financial Times article that you can access from the link gives an interesting prediction about when price parity between EVs and Internal Combustion Engines (ICEs) will take place and how EVs will flourish immediately after. In response to that article Delphine Clement, EMEA Mobility Segment Manager at Eaton sent Renewable Energy World the following statement about why the government needs to get serious about energy storage infrastructure such as charging stations and how these new grid assets will require additional solar, microgrids and load management techniques.
Looking forward, we will move from talking about ‘range anxiety’ for electric vehicles and start to really tackle the infrastructure changes needed to transform and facilitate the rise of electric vehicles. The industry will think much more about how to work closely with the likes of major supermarkets and petrol stations to ensure sufficient charging points are installed throughout Europe. This process will require the industry to consider what types of chargers should be installed and who will need to use them – influenced by user behaviours, autonomous vehicle uptake, commercial fleet management and external factors such as geography.
However, implementing a wider charging infrastructure will have a considerable impact on energy demand – forcing the energy sector to closely consider how peak demand and grid stability can be managed. The solution to this issue will need to encompass not just the extension of grid infrastructure but also photovoltaics and storage, load management, smart charging and DC microgrids amongst other technologies. In this way, the industry can enable the right infrastructure and easy access to charging to make range anxiety a thing of the past.’
Renewable Energy World is committed to covering these announcements and the development/transformation of an electric-powered transportation system in the U.K. and Europe. Stay with us! – JR

Puerto Rico School Ditches Grid for Solar-plus-Storage

Puerto Rico School Ditches Grid for Solar-plus-Storage

puerto rico
High in the mountains of central Puerto Rico, a school that’s been without power for five months since Hurricane Maria has given up on the island’s utility.
Classrooms at the SU Matrullas school in Orocovis are now entirely powered by solar panels and battery storage systems supplied by Sonnen GmbH and local developer Pura Energia. It comes after the school’s utility, bankrupt Puerto Rico Electric Power Authority, has failed to restore electricity for more than a million people since the storm destroyed its grid, plunging the island into darkness.
SU Matrullas, which has more than 150 students in kindergarten through ninth grade, has no plans to reconnect to the grid, Adam Gentner, Sonnen’s director of business development for Latin America, said. The school will now rely solely on a 15-kW solar array, backed by two battery systems with a combined capacity of 22 kWh. The systems are among 10 microgrids the companies have installed in Puerto Rico since the storm.
“The solar microgrid has had a very important impact on the community,” the school’s director, Alberto Melendez Castillo, said in an interview. “It has been very moving to see the students drinking cold water, eating fresh food and being able to work on computers powered by renewable energy.”

A lawyer for Puerto Rico warned the utility may begin shutting down as soon as Friday, threatening widespread outages unless it gets a $1 billion loan from the territory’s government.
Sonnen, a German manufacturer of batteries for residential and commercial energy storage, began production at a facility in Atlanta last year as part of a U.S. expansion. The company’s lithium ion chemistry uses iron phosphate, unlike batteries for electric cars that require lighter materials and smaller footprints.
©2018 Bloomberg News
Lead image credit: CC0 Creative Commons | Pixabay