In a previous post on Lighting Levels I talked about using lumens to plan lighting. . . . . but which type of bulb should you use?
There are now 3 types of bulbs in common use
Halogen (A more efficient version of the old incandescent light bulbs) Compact Fluorescent Lamp (CFL) Light Emitting Diode [read more...]
There are two elements when considering Lighting levels for your new house.
Electrical Power (Watts) Amount of Light (Lumens) Watts
In the old days with incandescent bulbs it used to be simple, bulbs came in 40, 60 and 100watts and you were allowed up to 25 watts/square metre of floor space.
Now for your new [read more...]
Electricity demand has dropped so much that Australia currently has at least 3 major coal fired power stations more than it needs! (This year the surplus capacity at peak demand is estimated to be around 8,000 megawatts)
In early July this year there was actually zero demand for power station generation in Queensland, mainly [read more...]
Sarking is the sheet material which can be put over the roof trusses before the final roof covering is installed.
It’s normally standard on a metal roof as it prevents condensation on the underside of a roof from dropping onto the ceiling below.
In the case of a tiled roof it helps with weatherproofing [read more...]
Conventional wisdom has been that you needed a North facing roof to mount your solar panels . . . . . . but it might be time to re-think!
Cost of Panels
In the early 1990 when people first really started looking at solar power for the home the cost of pv panel alone [read more...]
When the stricter energy standards came in the big builders all complained that it would make houses more expensive.
Well a recent CSIRO report The Evaluation of the 5-Star Energy Efficiency Standard for Residential Buildings has found it can actually be cheaper to build a sustainable house.
Here are three reasons why a more sustainable [read more...]
What do you think of this house?
Roof look a little unusual?
Well the roof, and the walls, are built using seeweed!
The seeweed provides a long lasting external surface, which as well as being a natural renewable resource, has great insulation values.
To find out more, with lots of pictures of [read more...]
I have previously talked about Bushfire reserve supplies. . . . But how much?
I see various minimum water volumes put forward for bush fire reserves. For example in early 2014 the following applied.
Victoria, regulations for new builds require 10,000Litres. South Australia the country fire service suggests 22,000Litres.
Just because there is a minimum [read more...]