3.4 MWp tenant electricity PV plant in Marzahn-Hellersdorf

Cooperation between municipal utilities and berlinovo for largest German tenant electricity project

Mietersonne Kaulsdorf, Germany's largest tenant power project with almost 3.4 megawatts (MW) of capacity, is being built by Berliner Stadtwerke for the Berlin housing association berlinovo in Marzahn-Hellersdorf. Tenants of 4,300 apartments will be able to benefit from the green electricity generated directly on their roofs.

The dimensions of the project, consisting of 39 solar systems on one hundred residential buildings in the district between Wuhletal and Hellersdorfer Strasse, speak for themselves: a total of 27,000 m² are covered with modules, which corresponds to 3.8 times the area of a football pitch. The yield is estimated at around 2.9 million kilowatt hours per year, which is equivalent to the entire electricity requirements of 1,200 two-person households. This means that approx. 1,580 tons of CO₂-emissions were avoided. Berliner Stadtwerke is investing around €3.75 million in this project. This year, 2.0 MW of the total 3.4 MW will be installed, around 60 percent of which have already been installed on the roofs since May. A further 1.4 MW is to follow in 2020 and 2021.

"Berlin is catching up," says Berlin's energy senator Ramona Pop. "We still have a lot of space on our roofs that we can use to work sustainably and efficiently for the energy transition here in the city. Until the federal government finally meets the requirements of the urban energy transition, we cannot wait, after all, the climate crisis is not waiting either. We are working at full speed to expand solar energy in Berlin. With the Mietersonne project, we are taking the biggest step on this path so far."

Finance Senator Dr. Matthias Kollatz explains: "In order to achieve Berlin's ambitious climate protection goals, we must double the speed of the energy transition. Relying on private initiatives alone is not enough. The commitment of the public sector is required. This example of municipal cooperation is exemplary - and an important driver in a very central climate protection area."

"We built the largest part of the facility this year," says Stadtwerke Managing Director Dr. Kerstin Busch. "Important for the success of the project is a high level of acceptance among the tenants, which we are also promoting on site with our own customer center at the Spree Center, among other things." Including the Mietersonne Kaulsdorf project, Stadtwerke will install around 4 MWp on Berlin roofs this year.

"Thanks to the cooperation with Berliner Stadtwerke, berlinovo tenants in the Kaulsdorf district will in future be able to obtain cheap local and clean electricity 365 days a year. At the same time, we are making the plat-ten buildings fit for the future and helping to achieve Berlin's climate targets," emphasises Alf Aleithe, Managing Director of berlinovo.

Berlin public utility company

Berliner Stadtwerke is a subsidiary of Berliner Wasserbetriebe. They are committed to consumer-oriented energy generation and environmentally friendly supply concepts based on renewable energies. To date, Berliner Stadtwerke has invested €30.4 million in renewable energies, in Berlin primarily in new solar power plants in the districts. This means they have built more than 40 percent of the solar capacity installed in Berlin since 2016. Information about and registration for the environmentally friendly "berlinStrom" at www.berlinerstadtwerke.de

About berlinovo

berlinovo was formed in 2012 from BIH Berliner Immobilien Holding GmbH, founded in 2006, and its subsidiaries. berlinovo is an investment of the State of Berlin. The portfolio includes 246 properties, one of which is abroad. Nationwide, berlinovo manages 23,500 rental units with a total rental area of 2.55 million m² and an annual target rent of over €249.0 million. These include around 15,200 apartments, 6,500 furnished apartments and 1,800 commercial units (as of 31 December 2018). berlinovo employs around 340 people.

Source: PM on 10/16/2019

Keywords: Stock, DE-News, Renewable, Climate protection, Communities, Tenant electricity, Sustainable management, News Blog Berlin, PV, Quarters, Settlements, City, Environmental policy, Urban production, Housing policy, Ecology

Published 18. December 2018

4 years Energy storage, networked operation and energy management for the power grid of the island of Borkum

Project partners of the EU project NETfficient take stock and publish manual in January 2019

Over the past four years, the power grid on the North Sea island of Borkum has served as a real laboratory for testing elements of a future-proof energy system. Central to this was the development of energy storage systems and their networked operation within a virtual power plant. The measures were funded by the EU project NETfficient from January 2015 to December 2018. 13 partners from 7 EU member states worked together.

Forty private houses, five large buildings, part of the Borkum street lighting and the temperature control of the Borkum Seawater Aquarium were connected to PV and energy storage systems, which range from lithium-ion batteries, supercapacitors and recycled old batteries from electric vehicles to hydrogen storage and low-temperature water storage. A 1 MW / 500 kWh large-scale storage system consisting of lithium-ion batteries and supercapacitors was also used in the medium-voltage grid. All these storages and generators were connected to the so-called Energy Management Platform (a Distributed Energy Management System or DERMS), which is the central element of NETfficient. The Energy Management Platform allows the automated operation of the generators and storages and optimizes the energy consumption on the one hand and allows the provision of system services on the other hand.

The various visits to the island of Borkum were enriching for all project partners, who gained insights into life and living there, as well as into the interests and concerns of the island's inhabitants. They found an island community that has an above-average understanding of the challenges of the energy transition and climate change and that has its sights firmly set on the goal of becoming climate-neutral and emission-free by 2030.

On a technical level, this was an extremely complex project that required close coordination between the individual partners, most of whom did not even know each other before the project began. Participation in the project allowed partners from academia and research, industry and SMEs to deepen and exchange their knowledge and skills in a wide range of areas such as energy storage, power electronics, network technology, energy conversion and software. Several partners were able to increase the technological maturity of their products and improve their offer to customers within the framework of the project. For some, the project collaboration led to new orders or projects. Project coordinator Ayesa Advanced Technologies SA (Spain) comments:

"NETfficient was a key project for Ayesa's innovation strategy. It allowed the company to develop new energy solutions with outstanding market potential and established strong collaborations with European partners in the energy and storage value chains. We thank all NETfficient partners for their intensive work on this ambitious project and great community spirit in working towards the project goals."

The most important findings from the project are now being summarized in a handbook, which will be published in January. It can be pre-ordered by emailing netfficient.project@gmail.com.

Further information on the project can also be found at www.netfficient-project.eu. In NETfficient, the Steinbeis-Europa-Zentrum took over the administrative and financial project management, the dissemination and exploitation of the project results, the communication and supports the market introduction.

NETfficient is coordinated by Ayesa Advanced Technologies S.A. in cooperation with 12 partners: Center for Advanced Studies, Research and Development in Sardinia; Department of Electrical and Electronic Engineering of the University of Cagliari; Fraunhofer Institute for Solar Energy Systems ISE; PowerTech Systems; Schneider Electric GmbH; Steinbeis-Europa-Zentrum; Swerea IVF (from ; Vandenborre Energy Systems NV; Williams Advanced Engineering; Wirtschaftsbetriebe der Stadt Borkum GmbH; Zigor Research&Development; and follower-partner Ayuntamiento de Santander City Council's Information and Communications Department. The project is co-funded by the EU Horizon 2020 research and innovation programme, Project No. 646463.

Website:
www.netfficient-project.eu

Keywords:
DE-News, Energy storage, Renewable, News Blog Lower Saxony, Electricity storage