Posts Tagged ‘eco-city’

Green homes: Energy passive buildings using the Kyoto pyramid

Monday, September 22nd, 2008

We aim to to reduce the energy requirements of buildings by passive measures.

The standard (p.t. German Passivhaus standard) depends on local climate for such houses and require an energy use of 25 % of ordinary houses., with max. energy requirement for heating being 15 KWh pr. sq.m. per year, installed effect max. 10 w/sq.m, total energy requirement max. 120 kW/sq.m./year.

The primary measure is to reduce heat losses by using extra isolating materials, reduction of air flows and heat transfers from the building as well as a high degree of heat reclamation.

Energy efficient appliances and lighting are required. The rest of the energy must be produced locally by sustainable energy such as suncells, biofuel, windmills.

Norwegian authorities are considering making mandatory the standard for all new buildings by 2020.

The  first passivehouse block of flats is ready in Bergen, Norway. Financing is subsidised.  A Norwegian standard is being developed. The first passive house was built in Darmstadt, Germany in 1991.

Considerations: use no fossil fuel, few toxic materials, natural ventilation, reduce use of water, no carbon monoxide production, vacuum toilets, low flow taps, blocking air flows, low emissive windows, reduce heat conduction, thermal breaks, tight seals, electrochromic glass, vacuum-insulated windows, heat recovery ventilator with filter, LEDs, web-based dashboards, have a small-scale garden,

The Kyoto pyramid principles: Reduce heat losses, reduce energy usage, utilize sun energy, show and regulate the energy use, choose local energy source

The EU Energy Performance of Buildings Directive, LEED green building standard (USA)

A Norwegian standard NS3700 is being developed – it is “softer” than the German standard.

ECO-City developments in Scandinavia and Spain (EU)
The aim of the “ECO-City project” is to demonstrate innovative integrated energy concepts in the supply and demand side in Helsingør and Helsingborg, Tudela and Trondheim.
Activities are demonstration of ECO-buildings and rational use of energy, renewable energy technologies. Projects are defined in a “Whole Community Approach” so that project initiatives are integrated components with the aim of optimal interaction and balancing of the demand and supply at all times.
Zilina, Slovak Rep. is an associated community.

Progress is being made (2010): New sustainable buildings have surplus energy at times – this heat must be transferred somewhere. Increasing weight is placed on energy control systems to control ventilation, heat pumps, lights, CO2 levels. Energy use of 65 Kwh/m2 is achieved.

Energy certificate required for all buildings sold on the market in Norway

1.1.2010 all buildings, flats – new and old over 50m2 – being offered for sale have to carry an energy certificate. The builders and the authorities are fighting about rules and procedure. A web list will be made of all buildings with certificates. The system is in beta now, and will be ready by year-end. It is expected that a good energy classification will increase the value of your property?