Posts Tagged Passivhaus technique

Annual Energy Balance Calculations | Eco House Design | Part 9

Annual Energy Balance | Renewable Energy Sources

In this article, we will calculate the total energy produced with the help of solar panels, energy used and total energy returned back to the grid.

Since the waste house has been designed using Passivhaus technique, it requires 4.47 kWh per day. As per the calculations in the section “Solar Electricity Generation” in the report, following results were obtained.

For 1kW capacity of solar PV array and considering 4.8 sunshine hours per day on average, total electricity produced would be 4.8 kWh of electricity per day whereas the requirement is 1630/365 = 4.47 kWh per day.

This indicates that adequate energy is being produced to cope with the calculated requirement.

The roof however offers a larger space and 4kW capacity solar PV can be installed as a result of which 4 x 4.8 = 19.2 kWh per day of electricity would be produced.

Total annual energy produced with the help of solar panels = 7008 kWh per annum


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Low Carbon House Design Methodology | Part 2

Stepwise procedure for designing the low carbon house

Step One

Identifying nationally recognized methods for assessing the environmental performance of new buildings in the UK.

Most widely used methods include Code for Sustainable Homes (CSH) 2006 and British Research Establishment Environmental Assessment Method (BREEAM). Other methods include Association for Environment Conscious Building (AECB) Silver and Gold and PassivHaus.

Policies for Sustainable Development in Brighton and Hove

The City Plan Policy CP8 for Sustainable Buildings supported by Supplementary Planning Documents, SPD 08 – Sustainable Building Design is expected to deliver viable development that considers community aspirations, environmentally sensitive, high quality, adequate infrastructure and helps in mitigating the impacts of climate change by gradually transitioning towards achieving a low carbon economy (NPPF, 2012).

National Planning Policy Framework, 2012 expects the local plan policy to play an active role in guiding the development that is viable and sustainable. The principles of One Planet approach have been adopted by the Brighton & Hove City Council which aims at radical reductions in greenhouse gas emissions by reducing energy consumption before the construction and after it is built. Mitigating the impacts of climate change is an important aspect of delivering Sustainable development (Low Carbon Construction, 2010).

Her Majesty’s Government proposed Climate Change Act in 2008 which was the world’s first long-term legally binding framework to tackle the dangers of climate change. It include a statutory commitment to reducing the carbon dioxide emissions by 34% by 2020 and 80% by 2050.

Step two

One Planet living principles

It provides a framework that helps us examine and evaluate the sustainability challenges that we face and develop action plans in order to create a sustainable and healthy environment.

Sustainable design principles

One Planet Living. Source: bioregional.co.uk

The ten principles are as follows:

  • Zero Carbon
  • Zero waste
  • Sustainable transport
  • Sustainable materials
  • Local and sustainable food
  • Sustainable water
  • Land use and wildlife
  • Culture and community
  • Equity and local economy
  • Health and happiness


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