Leading The Charge: As Battery Storage Sweeps The World, GE Finds Its Place In The Sun
By Tomas Kellner – The “duck curve” has two distinct peaks — one in the morning and the other after sunset — connected by a sagging belly pulled down by the deluge of renewable energy generated by the millions of solar panels sprinkled across California’s roofs and fields.
On a sunny Sunday, this glut of input could even lead to oversupply, a situation where wholesale energy prices drop so much that producers pay utilities to take their energy.
The problem reverses when the sun sinks into the Pacific. Power producers must quickly crank up their plants – many of them burning gas or coal – to replace those missing solar electrons with 11,000 megawatts to keep the state’s homes and businesses humming.
“The peak for solar power generation is at noon,” says Eric Gebhardt, vice president of strategic technology for GE Power. “What if you could store this energy and release it six hours later when the sun goes down and people come home, start cooking dinner and watch TV?” Gebhardt asks.
That’s precisely the point of GE’s Reservoir, a new grid-scale energy storage system the company unveiled today. The grid has to be perfectly balanced, meaning that power supply and demand match, to prevent it from crashing.
The Reservoir will allow producers to “decouple when energy is produced and when it is consumed,” Gebhardt says. “Without it, if you have too much solar during the day, the only option you have is to curtail production.”
The rise of the electric car unleashed innovation in the battery space, and the spread of solar power has brought costs down 50 percent over the last four years, says Keith Longtin, product breakout leader at GE Global Research in Niskayuna, New York. “You are now getting to a point where energy storage starts to make sense,” he says. more>
What is Fiber Densification?
By Helen Xenos – The term “network densification” is being used more often in relation to wireless network deployments, and more recently, “fiber densification” has become a hot a topic of discussion. So, what exactly is densification?
Densification simply describes the goal or end state of supporting more capacity within the same area or footprint. It is borne from the need of network providers to not only keep up with the increase in bandwidth demand they are seeing, but also grow their competitive edge in delivering a better end user experience for their customers.
Cable or Multi-Service Operators (MSOs) are undergoing a multi-year upgrade of their Hybrid Fiber Coax (HFC) access infrastructure. To provide a better quality of experience to subscribers, they are delivering higher capacity to smaller groups of homes and pushing fiber closer to the edge of the network.
HFC Fiber nodes, which on average service 500 homes per node, are being replaced with 10 to 12 Digital Fiber nodes. These nodes will now service 40 to 64 homes, be pushed deeper into the access, and increase per-user capacity.
An incredible amount of digital fiber nodes are expected to be deployed in the next few years, from tens to hundreds of thousands globally in 2018 and 2019. Fiber densification, the ability to pack as much capacity as possible over the limited fiber resources available, is of critical importance to achieve business objectives.
Finally, the simplest example of fiber densification is the hyperscale data center interconnect application. Global content providers are deploying huge amounts of fiber between massive data centers to maintain their aggressive pace of innovation and keep up with the doubling of bandwidth they are seeing on a yearly basis. more>
Posted in Broadband, Economic development, Economy, Net, Product, Technology
Tagged Broadband, Business improvement, Ciena, Densification, Fiber optics, Internet
By Peter Scherrer – It is, in my view, more necessary now than ever before to put the fight for more democracy at work on the political agenda. But at the same time, it is an issue to which neither the general public nor the EU political élite pays much, if any, attention, even though it is of great importance for millions of working people. The European Trade Union Confederation (ETUC), at its Executive Committee meeting this week, went ahead in that spirit and adopted the strategy.
ETUC members are deeply convinced that a European approach to democracy at work can directly improve working life, collective labor rights and the concrete participation of workers in society and the economy.
The performance of EU Member States like Sweden, Denmark, Germany and Austria demonstrates that extending workers’ participation rights in companies and in administration is not an obstacle to a productive and profitable economy.
Many EU member countries have developed fair rights to information and consultation and a significant number have workers’ representation on company boards. The active involvement of trade unionists and workers’ representatives contributes to economic success and employment stability.
A glance at the current situation shows that democracy at work is being eroded by e.g. increasing centralization of company decision-making in all areas and increased concealment of real ownership etc. This widening gap could be partly closed by European legislation on workers’ participation.
But a huge danger to the options for more democratic labor/industrial relations comes from the rapid growth in the proportion of ‘digital’ workers and employees in the so-called sharing economy. more>
Posted in Broadband, Business, Economic development, Economy, Education, History, Leadership, Media, Net
Tagged Broadband, Business improvement, Capital, Government, Internet, Jobs, Leadership, Organization
Densifying the Network, One Small Cell at a Time
By Wayne Hickey – Mobile network usage is growing at an astounding rate of 42% CAGR, as data rates rise driven by an insatiable customer appetite for video, gaming, social media, and live streaming. With the omnipresence of smartphone technology, advancement towards 5G, and mobile data as the major use cases – MNOs (Mobile Network Operators) struggle to maintain with growing customer demands.
There are three primary ways that MNOs can add capacity to their wireless network:
- Buy more spectrum
- Make spectrum utilization more efficient by optimizing spectral efficiency
- Densify the network, by adding more cell sites, while reusing available spectrum
A mobile network must be designed to physically reach the intended number of subscribers and adapt to the changing capacity needs of those subscribers. To do so, MNOs segment their networks by base station coverage by using macro cells and small cells (ex. micro cells, pico cells, nano cells, femtocells, and even WiFi cells, or hotspots).
Macro cells cover large geographic areas while the various types of small cells cover much smaller and varied geographic areas serving fewer end-users, both indoor and outdoor.
Macro cell sites use high powered radios, generally for large coverage areas. Small cells use much lower power radios, require less space, and increase data capacity by proliferation or densification of the network. Densification of the network means deploying lots of small cells to enable more overall users, lower latency, better mobile device battery life, and expanded coverage. The approach is to basically reuse spectrum over and over again, by keeping the coverage area small, and managing the interference between cells using a variety of techniques. more>
Posted in Broadband, Business, Communication industry, Economy, Net, Telecom industry, VIDEO
Tagged Broadband, Business improvement, Ciena, Internet, Macro cells, Small cells, Technology, Wireless