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25-523: The Solar Settlement at Schlierberg is a 59-home PlusEnergy housing community at Elly-Heuss-Knapp-Strasse/ Rosa-Luxemburg-Strasse adjacent to the Vauban quarter about 3 km from Freiburg city centre in South West Germany. Five rows of terraced houses with a Southern orientation are grouped to the left and right of a central access road, housing about 170 residents. Construction began 1999 and

50-625: A "high quality of tenant", innovative undertakings and creative work places through his designs. Ecological urban planning techniques like traffic management with wide, attractive walkways, bicycle routes and connections to public transportation are all part of the PlusEnergy ideal. At the Solar Settlement for example, tenants and owners incorporate bicycle and car-sharing, and the neighborhood has an extensive car-free zone with many public transportation connections. Built in 1994 as

75-512: A traditional home, preferring instead to use highly energy-efficient appliances, fixtures, etc., throughout the house. "Plusenergihuset" (the plus energy house) was the Danish term used by Jean Fischer in his publication from 1982 about his own energy-plus house. PlusEnergy is a brand name, used by Rolf Disch , to describe a structure that produces more energy than it uses. The term was coined by Disch in 1994 when building his private residence,

100-535: Is a large integrated office and retail building in Freiburg im Breisgau , Germany. It was built in 2004 in the city's Vauban quarter as part of the Solar Settlement at Schlierberg . Sonnenschiff was designed by the architect Rolf Disch (who also built the Heliotrope building) and generates four times more energy than it uses. As a whole this building produces more energy than it consumes per year and utilizes

125-453: Is connected to a local heating network. The south facing roofs are covered with photovoltaic modules with a generation potential of 445 kWp of the entire site. As of 2022, it is the largest residential roof-integrated photovoltaic system. PlusEnergy is a concept developed by Rolf Disch denoting a "structure's extreme energy efficiency so that it holds a positive energy balance", producing more energy than it uses. In 1994, Disch had created

150-422: Is intended to be superior to low-energy or zero-energy designs such as those of Passivhaus . The PlusEnergy approach uses a variety of techniques to produce a building that generates more energy than it consumes. A typical example is to capture heat during the day in order to reduce the need to generate heat over night. This is achieved using large North and South facing window areas to allow sunlight to penetrate

175-475: The Heliotrope as the first PlusEnergy house in the world. Disch then went on to refine the concepts involved with several more projects built by his company, Rolf Disch Solar Architecture, in order to promote PlusEnergy for wider adoption in residential, commercial and retail spaces. Disch maintains that PlusEnergy is more than just a method of producing environmentally-friendly housing, but also an integrated ecological and architectural concept. As such, PlusEnergy

200-443: The Heliotrope , in 1994, Disch had created the first PlusEnergy house. His next goal in its development was thus the mass application of the concept to residential, commercial and retail space. As the concept further developed and gained financial backing as well, Disch built several more projects with PlusEnergy certifications. “PlusEnergy is a fundamental environmental imperative,” Disch claimed. Disch believes that passive building

225-472: The South for optimal passive and active use of solar energy. Thermal insulation is used according to passive house standard, including glazing of the main facades with a U-value of 0.5, resulting in a heat requirement of only 11-14 kilowatt hours per m and year, which as of 2012 was 200 € (including maintenance costs) per year. Each house has a decentralized ventilation system with heat recovery. The settlement

250-408: The course of a year, than it imports from external sources. This is achieved using a combination of microgeneration technology and low-energy building techniques, such as: passive solar building design , insulation and careful site selection and placement. A reduction of modern conveniences can also contribute to energy savings , however many energy-plus houses are almost indistinguishable from

275-439: The energy used for artificial lighting. Sonnenschiff includes a supermarket, convenience store and bakery-café on the first floor, offices and work spaces on the 2-4 floors and 9 penthouses on its roof. In addition to the office and retail space, there are two conference rooms. This steel-framed construction is called the "Sun Ship" as its skyline resembles the silhouette of a ship. Its design allows it to naturally stay cool in

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300-448: The façade of the structure. This reflects PlusEnergy's emphasis on community planning and integration, with aspects of transportation, water management and communication also being seen as part of the design. PlusEnergy design also emphasises the importance of sustainable development on communities in general. An energy-efficient community is seen as generating positive identification and community pride. Rolf Disch says he attracts

325-440: The first PlusEnergy house in the world with the completion of his private residence, the Heliotrope . According to Disch "PlusEnergy is a fundamental environmental imperative". The settlement and the PlusEnergy house concept won the following prizes: PlusEnergy An energy-plus building (also called: plus energy building, plus-energy house, efficiency-plus house) produces more energy from renewable energy sources, over

350-478: The first floor, offices and work spaces on the 2nd and 4th floors, and 9 penthouses on its roof. Notable aspects of the building are its vacuum insulated walls, ventilation with 95% heat recovery, triple paned windows, and solar-panelled façade. EnergyX DY-Building (에너지엑스 DY빌딩), the first commercial Net-Zero Energy Building (NZEB, or ZEB grade 1) and the first energy-plus building (+ZEB, or ZEB grade plus) in Korea

375-537: The form of a community development of 50 PlusEnergy houses. The project, called Solar Settlement , won 2002 House of the Year, 2002 Residential PV Solar Integration Award, and Germany’s Most Beautiful Housing Community, 2006. Built between 2000 and 2005 in the Vauban quarter of Freiburg , the Solar Settlement is intended as an example of Disch’s vision of a “fundamental environmental imperative”. As of 2011,

400-467: The homes have had more than 8 years of full occupancy and each produced more than 5,000 Euros ($ 5,600) of surplus energy a year, from which the owners of the houses have benefitted. The Sun Ship, located next to the Solar Settlement in Freiburg, uses its 60,000 sq ft (5,600 m ) for retail, commercial and residential space. The Sun Ship houses a supermarket, convenience store and café on

425-475: The most up-to-date building technology. Some aspects that make this building particular are its vacuum insulated walls, ventilation with 95% heat recovery, triple paned windows and its energy façade . It is the first positive energy office building worldwide. The office spaces are flanked on both the East and West sides entirely with windows, which maximizes natural lighting and employee views while it minimizes

450-429: The nine penthouses, Sonnenschiff houses several companies such as the high-end supermarket Alnatura , a DM drug store and such institutions as Ökostrom and the non-profit Öko-Institut . PlusEnergy is a term coined by Rolf Disch that indicates a structure’s extreme energy efficiency so that it holds a positive energy balance, actually producing more energy than it uses. With the completion of his private residence,

475-410: The private residence and special project of Rolf Disch in Freiburg , the Heliotrope is claimed by its designer to be the first building in the world to create more energy than it uses, being reliant on entirely renewable power, and being emissions free and CO 2 neutral. The structure rotates to track the sun, which allows it to use a large amount of natural sunlight and warmth during the day. After

500-439: The settlement was completed in 2006. The houses contain 2-3 floors and were built with ecological building materials via wooden post-and-beam construction from regional forests and prefabricated individual modules, PVC-free, and environmentally friendly insulation materials. Apartment sizes are from 81 to 210 m and are rental and owner-occupied. An underground parking lot keeps the street car free. The houses are oriented to

525-506: The structure, reducing the need for energy use from light bulbs. Triple-pane or quadruple-pane windows ( U-value = 0.4 – 0.7 W(m K)) trap this heat inside, and the addition of heavy insulation then means the structure is already warm in the evening and therefore needs less heating. In the Sun Ship , a 60,000 sq ft (5,600 m ) commercial, retail and residential PlusEnergy structure, techniques such as phase changing materials in

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550-620: The success of Freiburg’s Heliotrope, Hansgrohe contracted Rolf Disch Solar Architecture to design and built another Heliotrope to be used as a visitors' center and showroom in Offenburg , Germany. A third Heliotrope was then built in Hilpoltstein , Bavaria to be used as a technical dental laboratory. With the success of the Heliotrope, Rolf Disch Solar Architecture applied their PlusEnergy concept to mass residential production in

575-440: The summer and to store heat in the winter. The ground floor is used for high-end retail and commercial space. The next three floors are used as office and commercial space, while nine penthouses on its rooftop offer residential space (112 to 300 sq. meters). This unique integration of retail, commercial and residential space, all with a carbon-free footprint and a positive energy balance distinguish this development. Apart from

600-486: The walls and vacuum insulation are also used. This permits maximum availability of floor space without compromising efficient insulation. An important part of the PlusEnergy approach that differentiates it from similar concepts is that the owner or tenant of a PlusEnergy building should be able to live and work comfortably in it without sacrificing lifestyle or normal living standards. For example, solar panels are made aesthetically pleasing so that they are integrated into

625-472: Was opened and introduced in 2023. The energy technology and sustainable architectural platform company EnergyX developed, designed, and engineered the building with its proprietary technologies and services. EnergyX DY-Building received the ZEB certification with an energy independence rate (or energy self-sufficiency rate) of 121.7%. Sun Ship (building) Sonnenschiff ( lit.   ' sun ship ' )

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