Postings tagged with: power

These are the different AC grid access concepts

To AC or to DC – that is the question

Power generated by ocean-based wind turbines can be transmitted to shore by either alternating current (AC) or direct current (DC). Siemens offers both options; the choice depends mainly on the distance to be covered. The best spots always go first. For wind-turbine sites, this is just as true as it is for seats in a theater or a cinema. Over the past 10-15 years, many of the top, land-based locations for turbines have been snapped up. You can’t miss them from an airplane, a motorway or a long ...

Chris King| Aug 05, 2015

Utilities of the Future: British Gas Refocusing on Customers

Much has been said about the "utility of the future." British Gas is joining other European majors such as E.ON and RWE and not just talking the talk but walking the walk.In its earnings announcement last week, Centrica (British Gas's parent) said it was cutting back investment in its oil and gas division and focusing on being a customer-facing business. This was the headline finding from its corporate strategic review.Like E.ON and RWE, British Gas is turning toward what it calls its ...

Denis Imamovic | Aug 05, 2015

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When cables won't do

GIL’s Electromagnetic Advantage

As three previous posts in this series have shown, gas insulated lines (GILs) offer many advantages to pyloned power lines or buried cables. Here’s another advantage: they are more electromagnetically compatible. GILs are a great solution for specific challenges. In populated areas, for lines carrying more than 380 kV and 2,000 A, the line-in-a-can option allows high-tension lines to pass close to people and to occupy relatively little space. Fire risk is zero, and GILs can be put into multi-fu ...

Chris King| Jul 17, 2015


A New Paradigm in EV Charging - More Convenient, Less Expensive

I had the pleasure this week at LinkedIn’s global headquarters of helping to introduce a radical new concept in electric vehicle charging.FreeWire Technologies, Inc. is piloting its invention, the Mobi Charger™, to provide EV charging to LinkedIn’s employees. Mobi Charger turns traditional charging on its head by bringing the charger to the car – instead of the driver bringing the car to the charger. Siemens is a partner in the project, providing the data collection, management, and energy billi ...

Gregory Manning| Jun 18, 2015

digesters picture - greg manning blog

What is biogas, what are some approaches to digester optimization and how does it affect me?

If you work in or around the wastewater industry you have most likely heard of, or been involved in some sort of investigation on solids waste digesters. Their use in the industry has surpassed just being a trend and is getting closer to becoming an ubiquitous facet of most medium-sized to large-sized facilities.I recently attended a 2-day conference on wastewater with my sole objective being to understand the general attitude toward the operation of digesters, what facilities are doing to optim ...

Harald Mayer| Jun 11, 2015


Transformers, backbones of the AC Voltage Grid

At the early age of electricity a war of currents took place— DC v.s. AC, also known as direct current and alternating current. Both technologies offered many advantages but also disadvantages. One major step towards today’s alternating current grids was the invention of transformers. The transformer enabled higher voltage levels in the grid, which allowed a more efficient transmission of energy and application specific voltage levels. That was the beginning of the success story of transformers. ...

Living Energy| May 04, 2015

Dr Michael Weinhold - CTO of the Siemens Energy Management Division

Weinhold’s Power Lines: Brains and Brawn - The Electronics Revolution and the Energy System

What is power? In human interactions, the term often refers to physical strength, but we also speak of “the power of information” as a way of shaping and directing the course of events. Power is the ability to influence the world in both material and immaterial ways – through intelligence and muscles, through brains and brawn. The same is true for the way in which electronics has reshaped the energy system. It was the invention of the transistor and its first commercial usage in the 1950s that ...

Chris King| Apr 27, 2015


Tesla, cheaper batteries for solar systems, and managing the demise of traditional utility business models

A few weeks ago, Tesla Chief Executive Elon Musk took to Twitter to issue a new product announcement tease: “Major new Tesla product line—not a car—will be unveiled at our Hawthorne Design Studio on Thursday at 8 pm, April 30.” Word on the street is that the new product will be Tesla’s entry into home energy storage, leveraging Tesla’s battery Gigafactory announced last year. This joint venture between Tesla and Panasonic, expected to be completed in Nevada in 2020, would become the world’s larg ...

TheEnergyBlog Team| Apr 24, 2015

SIESTORAGE - initial installation at Enel in Italy

Continuous Power Flow? Totally Integrated!

Walking from one end of Siemens’ 3,500-sqm exhibition area to the other at this year’s Hannover Messe one solution was prevalent across all areas, from Energy to Industry: Totally Integrated Power. It was a way to physically experience the comprehensive scope of Siemens’ end-to-end portfolio encompassing software and hardware products, systems and solutions for all voltage levels – from high-voltage in-feed, to low-voltage consumption, from grid access via industry application to home supply. Ba ...

Alicia Carrasco| Apr 22, 2015

Screen Shot 2015-04-22 at 12

Transforming Energy Regulations and Markets: Ofgem Seeks Input

As the electric power industry evolves, new business models present many opportunities and risks. Seeking options to constructively and proactively transform the energy market (while also lowering electric bills, benefiting the environment, and protecting the interest of current and future consumers) U.K. energy regulator Ofgem has opened a consultation to investigate nontraditional business models. Submit comments to Ofgem here: Input is invited from from utilities, i ...