Architectural Hacking

Layout Moves Sometimes it’s hard to predict which layout will look best – often the plan (i.e “in plan”, looking down) is doesn’t tell the story of standing in the room. Using a 3D package and exporting similiar view is helpful. Hover […]

Daylight and Sun Shading Analysis

Shading and Daylighting Using Ecotect and some custom scripts, it’s possible to quickly generate “views from the sun”. Using Radiance, we can calculate the amount of natural light we’ll get from the windows, and which are will be dark. Some examples are […]

Stair Design

The rise and run of a stairway makes it comfortable (or not). This reference is good but in imperial, and NCC requirements must be checked. Note NCC is about limits, not comfort. Running the numbers shows a run of 280mm and a […]

A39 House – Performance and Monitoring

Air Sealing Testing Introduction and Rationale “Build tight and ventilate right” is the mantra for passive houses in cold climates, such as “Passivhaus”. The idea is to heavily reduce air entering the building through cracks, windows and the like. This reduces the […]

A39 House – Construction

Tips: Concreting the Stumps Boral truck was very late, then charged a wait fee (!). Won’t use Boral again. Pumping (minipump) was well worth it. $500 with 2 guys did 8 cubes ( 8 x 16 large barrows). Pretty straight forward. 4 […]

A39 House – Design

Daylight Modelling to Inform the Design Target A DF of 10% will always stop people turning on lights A DF of 3% is deemed “adequate” Target: 5% to most of the floor. But: minimise glare, moderate window sizes Method Ecotect and Radiance […]

Hacking the Sungrow 5 Inverter

This inverter has a WiFi connection and opens ports 80 (password protected) and 502 (modbus). It’s possible to read the modbus registers. There’s a handy script that’s done all the hard work. This can import into Influx, as shown below on the […]

Access Grafana via token without login screen

This explains how I implemented a previously outlined solution, in a step-by-step fashion. I initially struggled to get this running.¬†¬† There’s the method that worked. Overview The goal is to give someone a unique link, through which they can logon without a […]

Investigating for IotaWatt, AWS, InfluxDB and Grafana

I’ve previously used EmonCMS to log power and energy data from a IotaWatt¬† / EmonTx system. This works well, but I’ve been looking for a flexible and fast alternative. The combination of IotaWatt, InfluxDB and Grafana look to provide this. My experiences […]