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What does energy neutral mean? What does properly designed mean? And at what cost to comfort or the property? You could turn off all your electricity and heat y
by graphe 4y ago
What does energy neutral mean? What does properly designed mean? And at what cost to comfort or the property? You could turn off all your electricity and heat yourself with kerosene and have used no electricity for the year.
- pjc50 4y agoUsually means "passivehaus", and "energy neutral" would mean "generates an equal quantity of electricity to that consumed, when summed over the year". > heat yourself with kerosene That's not energy neutral, is it now, unless you have a kerosene well on the property.
- graphe 4y agoGeothermal energy would be amazing! But it's hard to balance with carbon emissions.
- hgomersall 4y agoPrecisely - for a smallish 120sqm house the passivhaus heat demand is 1800kWh. 3000kWh is not unreasonable for additional electricity consumption. With a heat pump that heat demand should pessimistically translate into <1000kWh electricity, giving us a total energy usage of ~4000kWh. That's about what a medium size (~20sqm) south-facing roof-mounted PV installation would achieve in the south of the UK.