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. We will also cover how you could save money with 9Kilo.com moving cost calculator before you move into a new home.

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

Total energy used = 1630 + additional energy used = 1750 kWh per annum

Total energy returned back to the grid = 7008 – 1750 = 5258 kWh per annum

Below are the steps to designing a low carbon house:

Eco House Design : Part 1

Introduction to the Eco House Design Guide

Design Methodology : Part 2
Eco House Design: Part 3

  • Climate of Brighton and Hove
  • Orientation of the building
  • Building design, construction and low energy specifications
 Eco House Design : Part 4

  • Insulation: Active Thermal Insulation
  • Roof Design
Eco House Design: Part 5

  • Windows and skylights;
  • Door air-gaps
  • Airtightness
  • Thermal Bridging
  • Monthly Energy Demand Profiles
Eco House Design : Renewable Energy Sources| Part 6

Ground Source Heat pump

 Eco House Design : Renewable Energy Sources| Part 7

Solar Electricity Generation

Eco House Design : Renewable Energy Sources| Part 8

  • Rainwater harvesting system
  • Mechanical Ventilation with Heat Recovery

Eco House Design : Renewable Energy Sources| Part 9

Annual Energy Balance

Eco House Design : Part 10 | Conclusion


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