Why 2018 is going to be the year (Alpha) Zero.

Benjamin Kott

January 03, 2019

Lots has been said about 2018 already and what an amazing and at the same time dramatic year it has been. Personally, I will never forget *that* simultaneous landing of the two Falcon Heavy side boosters (followed by watching Spaceman circle the planet live on YT for a few hours).

Falcon Heavy Side Boosters Landing

While in a decade or two we might actually send people to Mars, there is something much bigger unfolding right in front of our eyes, right here and now.


7 Key Lessons of Building Optimisation from Seven Years with Fabriq

Benjamin Kott

November 23, 2018

No-one said it would be easy. But did it have to be this hard? At least it’s hard AND fun at the same time.

Here are the seven lessons of building optimisation that we learned during the years since the founding of Fabriq - so you don't have to!


Distributed home energy systems – fast approaching break-even

Arnaud Henin

April 28, 2015

As interest in distributed renewable generation and home energy system intensifies, it is useful to understand the underlying economics of such systems. Although there are many configurations for home energy systems, we have looked at a system including photovoltaic power generation, battery energy storage, electric vehicles and a control system with moderate load control. We are not including energy efficiency in the system evaluation, as many core energy efficiency measures are economically positive and should be implemented before installing home generation and power storage. This provides a better underlying demand that avoids installing excess generation and storage than if energy saving measures are implemented later. However, some load control and demand response is included that allows improved matching of the home power demand and supply.

The return on home energy systems varies significantly based on location, as local consumption patterns, driving culture and renewable resource have large impacts on the economics of the system. In this analysis, public incentives (including subsidies, rebates or tax benefits) are explicitly excluded to allow evaluation of the underlying economics and comparison across markets.

Tags:   policy , advice

Green Deal or No Deal Part 3: Number Crunching

Bruno Girin

May 22, 2013

Following part 1 and part 2, I received the official assessment a while back. Here is a quick analysis of the content and subsequent research on my part.

Basic Numbers

The Green Deal assessment I received is a 5 page PDF document. The very first thing that it tells me is that my current situation could be worse:

So my household consumes less than the typical household. This is probably due to my habits rather than the building being energy efficient: I am out during the day, I tend to switch lights off when I'm not in a room and will put a fleece on when it's a bit chilly rather than switch on the heating. The side effect of this, as the rest of the document attests, is that my saving potential is lower than average.

Tags:   advice

Green Deal or No Deal - Part 2: Assessment & Recommendations

Bruno Girin

March 04, 2013

In the first installement of this series, I detailed what the Green Deal was about and how I went about arranging an assessment, which is the first step in getting anything done. I had the assessment last week so it's now time to report back on how it went.

Price and Output

As detailed in my previous post, it took five calls before I reached someone who really knew what I wanted and could organise an assessment. Or so I thought. The second company on my list did call me back eventually, at which point I had to tell them that because they had called me two weeks after I had sent a request, I had already booked with someone else.

Tags:   advice

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