Approximating Pi

Stuart Woolley Blog, Technical

Imagine you’re stranded on a desert island and you really need to find a good approximation of π for some super machine that you’re building to make your escape. Perhaps it’s AC powered from a tidal source or wind generator and there are a couple of phase angle calculations you need to make for the flux capacitor to power up? …

Energy Usage Related Signals

Stuart Woolley Blog, Technical

The power spectrum of a signal is a fascinating way of digging deeper into understanding complex systems. If you recall your basic physics, a power spectrum shows how the power of a signal is distributed over its frequency range. I have a long standing interest in chaotic systems and fractals and came across a fascinating paper from 1975 by Voss …

Buildings energy performance

Buildings and their energy performance – LEED and BREEAM

Ronan Moriarty Blog, Energy

There are many different methods to assess their energy performance, two of the more popular ones are LEED and BREEAM. Leadership in Energy and Environmental Design (LEED) was first developed in North America about 20 years ago, and is now widely used around the world and it is very practical and user friendly as well as being available online. Building …

The American Elections

Clinton Vs Trump: Energy Policies

Catherine Devaney Blog, Energy

With the American Elections less than a month away, the media’s attention has been focused on each of their respective policies once they become president. Their policies differ greatly. This article aims to give a brief outline of the two candidates’ energy policies and where they stand on important environmental issues. Renewable Energy Oil Drilling Clinton opposes Arctic drilling, whereas …

ISO 50001

Happy Birthday to you Mr. ISO 50001

Helene Ljubanic Blog, Energy

A very happy 5th birthday to the ISO 50001 standard! It is not surprising to see that more and more organisations are turning to the ISO 50001 standard to improve their energy efficiency. To date there are more than 7,000 sites worldwide that have achieved the certification. But what is ISO 50001*? ISO 50001 is a voluntary International Standard developed …

battery power

Battery Power is going salty

Ronan Moriarty Blog, Energy

One of the biggest problems faced by renewables is the unreliability of them – when the sun’s not shining, you can’t use it to heat anything. One way to solve this problem on a small scale is to have the turbines charge a battery, and then when there are periods of no wind the battery can take up the slack …

HVAC Energy Efficiency

HVAC Efficiency Tips for your Business

Catherine Devaney Blog, Energy

On average, HVAC systems account for 40% – 60% of a building’s energy consumption. Increasing HVAC efficiency in buildings is critical to reduce detrimental global energy usage impacts, as well as saving your company money by reducing usage costs. So, what exactly is HVAC Efficiency? In basic terms, it means making sure your HVAC equipment is heating and cooling your …

Tuples

Frederico Almeida Blog, Technical

Basically, a tuple (Tuple in C#) is an ordered sequence, immutable, fixed-size and of heterogeneous objects, ie, each object being of a specific type. The tuples are not new in programming. They are already used in F#, Python and databases. However they are new to C#. The tuples were introduced in C# 4.0 with dynamic programming. To learn more, visit: …

Are Energy Credits Good for Business?

Gerry Swan Energy

Since the first issue of Article 8 of the EU Energy Efficiency directive, there has always been a carrot for the utilities to get involved and reduce the energy consumption of their customers. There was also a good lead time before the stick of fines are to be applied. The grace period has come to an end. The first set …

Energy Efficiency Tips for Facility Managers

Annalisa Di Pietro Blog, Energy

Many companies spend more than necessary on energy. This is often a result of inefficient equipment or improper operations. Facility managers have a big challenge and responsibility when managing and organising energy usage, reducing waste and cutting costs, while at the same time keeping employees comfortable and safe. If a facility manager knows what to do, he can help his …