What’s in a Kilowatt Hour?

The current price spikes for electricity in Europe has driven a new interest in saving energy, and part of doing that is to understand just how much energy different things use. I realized while I knew that modern LED lights are magically efficient, just how much electricity is used by other machines? No idea! So, I set out to find some examples the utility you get from a one kilowatt hour of electricity.

Updated in November 2022 with additional data.

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Wind River Blog: Internet-of-Things Massive Simulation using Simics

There is a new post at my Wind River blog, about how Simics is used to simulate large wireless networks for IoT (Internet-of-Things) applications.

It is funny for me to be back at the IoT game. A decade ago (time flies, doesn’t it?), at Virtutech, I and Johan Runeson took part in an EU research project on exactly this topic. Unfortunately, we had to back out of that project due to economic circumstances and failing management commitment, but we still learnt a few things that were relevant now that we are back in the IoT game. In particular, how to simulate wireless networks in a reasonable way in a transaction-level simulator. Thus, payback for the investment took 10 years to arrive, but it did arrive. To me, that underscores the need to be a bit speculative, take some risk, and try to explore the future.

The EU Election, Pirates, and Society

toppage_logo_svNext week (June 7) is the election date for the EU parliament for the next five-year term. As a citizen of the EU and Sweden, I feel it is my civic duty to vote… but the quality of the election campaign so far does not exactly encourage it. As in many other EU countries, the EU and its parliament feels like a distant power hard to affect, and the EU election process tends to be more about domestic issues than true EU-level issues. Even so, there is one relevant, interesting, and burning topic that has come to the fore. Intellectual property rights and “media piracy”.

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