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Apples to Oranges to Chinese Gooseberries: Pledges for the Paris climate talks

Max Henrion 01 Oct 2015 Energy and environment, News

October 1, 2015 was the UN's deadline to receive national pledges for the UN Climate Change Treaty to be negotiated in Paris this December. At the end of February, the UN received the first submission — Switzerland's proposal to reduce...

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Faster evaluation in Analytica 4.6

Lonnie Chrisman 26 May 2015 News

As we celebrate the release of Analytica 4.6 this week, I thought I would share the results of some benchmark timings that I carried out to test how the evaluation speed in 4.6 compares with the previous two Analytica releases. As...

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Analytica 4.6 beta available

Lonnie Chrisman 17 Mar 2015 News

The first beta release of Analytica 4.6 and ADE is now available. This kicks off the beta testing cycle for this next release of Analytica and ADE. To see a list of new enhancements, visit What’s New in Analytica 4.6? ...

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Cost effectiveness of installing rooftop solar panels

Lonnie Chrisman 03 Mar 2015 Analytica tips, Energy and environment

If you are new to modeling, it can be very helpful to watch someone build a model from start to finish. I created a model to decide whether it would be cost-effective to install solar panels on the roof of...

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Marginal Abatement

Lonnie Chrisman 25 Jan 2015 Analytica tips, Energy and environment

Analytica models in the energy sector often include a Marginal Abatement graph for CO2 emissions. In this post I explain briefly what a Marginal Abatement graph is and provide steps for creating one of these graphs in Analytica. I have...

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An Interesting Christmas Gift

Rob Brown 07 Jan 2015 Risk and uncertainty

Over the holidays, the New York Times delivered an unusual juxtaposition of headlines and content, and apparent lack of self-awareness, to illicit such a hearty chuckle from its readers as to make the cheerful Old Saint jealous.

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Greenhouse Gas Emissions and Energy Expenditure from Santa’s global tour

Lonnie Chrisman 04 Dec 2014 Energy and environment, News

In a few weeks, Santa Claus will embark on his annual Christmas eve ritual, delivering presents to the good little boys and girls around the world. In this article, I look at the net energy expenditure and greenhouse gas emissions...

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Congratulations to Dr. Max Henrion for Decision Analysis Society's 2014 Best Practice Award

Lonnie Chrisman 13 Nov 2014 Case studies and applications, Energy and environment, News

      I want to offer my congratulations to my colleague here at Lumina Decision Systems, our CEO Dr. Max Henrion. The annual INFORMS conference took place this week in San Francisco, where Max gave a presentation on the 

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Latin Hypercube vs. Monte Carlo Sampling

Lonnie Chrisman 23 Jul 2014 Analytica tips, Analytics and OR, Risk and uncertainty

In a recent post on Linked In, David Vose argues that the advantages of Latin Hypercube sampling (LHS) over Monte Carlo are so minimal that "LHS does not deserve a place in modern simulation software." [1]  He makes some interesting...

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The Value of Knowing What You Don't Know

Rob Brown 11 Jul 2014 Case studies and applications, Risk and uncertainty

Few of us really like uncertainty. It fills us with dread. It frustrates our planning efforts. It makes analyzing its effects complex. After all, where in a spreadsheet do you put uncertain values for revenue or costs? Admittedly, accounting for...

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