£100/MWh and falling… Dawn breaks on a cheaper, stronger offshore wind industry.

Paul Reynolds

In the last two days we have seen announcements that will be forever remembered in offshore wind. The day that the sector stopped talking about cost reductions, and started delivering.

On Thursday came the long awaited results of the first allocation of Contracts for Difference in the UK. The result: East Anglia 1 to deliver 719MW at £119.89/MWh, while Neart na Gaoithe will deliver at £114.39/MWh.

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Independent inverter testing helps minimize solar project risk

Inverter testing helps project financiers, developers and EPCs compare and select inverter products. Testing standards vary by region and certification testing alone is not enough. Click here to read DNV GL’s recent interview with Solar Power World and listen to our podcast on “Solar Speaks.” Ray Hudson, DNV GL Solar Service Leader, and Michael Mills-Price, Inverter Testing Service Lead, share their perspective on why lab and field testing including actual “sun time” is so important.

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Exploring Maxwell’s electromagnetism equations created 150 years ago – part 4

Peter Vaessen

In this fourth blog, we take a closer look at the fourth Maxwell equation and some of its implications for the power system.

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Performance upgrades for wind turbines: is free energy really free?

Alex Byrne

Performance upgrades are a hot topic in wind energy today; they comprise various modifications made to existing wind turbines in order to increase energy capture. The seemingly free extra energy is hard to turn down. But what are the hidden costs of this “free” energy? The answer depends on the type of upgrade. Continue reading

US Clean Power Plan and global emissions: what difference does the CPP make?


The US Clean Power Plan contains ambitious COreduction targets to be achieved by 2030, but will it make a difference on a global scale? Is it a relevant milestone in the global climate change negotiations that aim to finalize global carbon reduction targets in December?

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Exploring Maxwell’s electromagnetism equations created 150 years ago – part 3

Peter Vaessen

In today’s blog we take a closer look at the third equation and some of its implications for the power system.

Maxwell's third equation

This equation, also known as Faraday’s law of induction links the creation of an electric field to a changing magnetic flux Fm. More precisely: the induced voltage (emf), which is the line integral of the electric field strength around any closed path equals the rate of change of the magnetic flux through any surface  bound by that path. The consequence is that there is current induced in a (wire) loop placed in a time-varying magnetic field. This is the working principle of all electric AC generators, and as such in my personal view the most import Maxwell equation as it allowed us to build the electric power system as we know it today.

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The EU’s energy efficiency directive: How it affects you

Ulrika Wising

In today’s business climate, no company wants to find itself in a state of regulatory non-compliance. Particularly when the regulations in question are concerned with sustainability.

Nor is it difficult to see why. With both governments and consumers placing sustainability high on their respective agendas, non-compliance potentially opens the door to a number of unwelcome consequences, not the least of which is reputational damage.

A single damaging headline can easily undo a significant investment in corporate and social responsibility initiatives, steering consumers into the arms of your competitors. Likewise, governments and corporate customers are increasingly linking their sustainability agendas to their contract-awarding processes. Tick the box—or be shown the door.

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Themes from DistribuTECH 2015: Utility Transformation and Risk Management

Any change represents an opportunity, but it also comes with risk. Nobody wants to find out later that he should have done things differently. The need for change was one of the key themes at the 2015 DistribuTECH conference earlier this month.

Whatever the perspective on change may be in the power sector, the need for utility transformation is widely accepted today. It may not be disruptive, but rather incremental. Nevertheless, it will come in a more dramatic way at a fast speed. In fact, at the conference Jeff Martin, CEO of San Diego Gas & Electric, and Ted Craver, President and CEO of Southern California Edison, said there will be more change over the next ten years than in the last one hundred. To ride the wave of the future, utilities are advised to change from being reactive to more proactive.

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Exploring Maxwell’s electromagnetism equations created 150 years ago – Part 2

Peter Vaessen

Last week I discussed the famous set of four Maxwell equations which govern the phenomena of electromagnetism. Today, I will take a closer look at the second equation and some of the implications to power engineering applications. I have to admit, to the knowledgeable reader, that the formulation in last week’s blog was not entirely mathematical correct, it should have read:

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How will the evolution of lighting technology impact the energy efficiency landscape?

Bryan Russell

It has been a busy couple of weeks for me, closing the books on 2014, writing our retrospective reports, and comparing notes with my colleagues around the nation. And I am consistently hearing the not-so-subtle drumbeat about the monumental rise in adoption rates of LED lighting.

As DNV GL’s marketing manager on DTE Energy’s Energy Efficiency Program for Business, my primary focus is on the commercial and industrial (C&I) space in Michigan. As a manufacturing powerhouse, our state has a lot of industrial facilities, but also offices, hospitals, and universities—all of which are doubling down on LEDs. It’s not that we didn’t see this coming, because we did. Is it happening on a larger scale or sooner than predicted? Maybe. But what it really leaves me thinking is: “Ok, so now what?” Before we answer this, let’s review the facts that led me here.

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