Written by admin on March 30, 2009 – 12:50 pm
Calculations
The concern about the heat pump is the running costs. Even though the efficiency is 1 to 4 (1kWh in gives 4kWh out), the economics & CO2 savings are somewhat different.
My last bill including VAT
1 unit of electricity = 14.58p
1 unity of Gas = 5.17p (see note about split costs below)
No. kWh of Gas used [...]
Written by admin on March 10, 2009 – 5:06 pm
Segen provide a calculator at this link and there is a Romsey based company Solar Technologies that need further investigation. This post will be updated with further info as and when I produce a more detailed plan.
Written by admin on March 9, 2009 – 4:00 pm
Do the energy companies prohibit the inclusion of battery backup (in the event of gid failure) for safety reasons ?
Written by admin on March 3, 2009 – 11:02 am
The requirement is to install a Solar Hot Water system capable of providing domestic hot water for a 300 litre tank. The existing tank is a Ultra Steel manufactured by RCM Group. It is a non-vented system and already has a secondary coil. The Visseman 200 gas central heating is currently plumbed into this secondary [...]
Written by admin on February 22, 2009 – 2:19 pm
Given the current plans what additional insulation is required to reduce the amount of heat that is generated by the heat pump ?
Assuming additional insulation is applied, how much electricity will be used to power the heat pump ?
This information is an input to the PV requirement
Is it possible that heat from the Solar heating [...]
Written by admin on February 22, 2009 – 2:15 pm
The recent government Heat and Energy Saving Strategy discussed the “Whole House” approach (Chapter 1 Box 1.3) to considering a households energy needs and CO2 impacts as a whole. GreenHomeDiary is pioneering this approach - the different renewable technologies and energy saving considerations should form an integrated solution. The possible difficulty is that different suppliers [...]
Written by admin on February 22, 2009 – 1:55 pm
There will be a combination of renewable technologies that will form an overal solution to the goal of achieving a zero energy usage for the house, which will also contribute towards reducing our carbon footprint. There is a minimum configuration of appliance that need to be operational in the event of a power cut :-
Freezer
Refrigerator
Central [...]
