Solar passive houses are amazing, as long as the sun is shining it is warm and comfortable in summer and winter. The polished concrete floors act as a massive thermal battery bank, absorbing the heat in the day time and only releasing it when the air temperature gets lower than the floor temperature. This means that in winter the house can stay at a comfortable temperature, it only cools off after two to three day of rainy weather (we have a log burner for these times). This house also converts the suns energy to electricity with our solar array and store it in large battery bank which we draw from at night or if we have rainy days. Our house is designed around energy efficiency and but also about extracting the most out of our solar array.