Optimising Energy Storage for Renewable Energy Security

Battery energy storage systems (ESSs) are becoming well established to help the grid integration of solar photovoltaic (PV) and wind energy, particularly in remote and island communities. It is important to understand the different roles that energy storage can play, including controlling ramp rates, smoothing, shaping, peak shaving and frequency regulation.

Most Popular Articles for 2015 - Did some of them predict the future?

Smart Homes, Robotics, Automation, Unmanned Vehicles, Solar and Wind Energy. Regardless of where you work or what you do, these topics are affecting your life and will continue to do so in the future.

Liquid Cooled High Power Li-ion Battery System

Using battery systems for peak shaving is highly beneficial; enabling a constant load on the engine ultimately leads to high efficiency and energy saving at the engine level.

Businesses Bank on Fuel Cell Reliability to Achieve Sustainability Goals

As the business case becomes more apparent - with fuel cells delivering both economic and environmental value - the list of corporate customers continues to grow.

Top Smart Grid Solutions From Technology Companies

Here are three key software driven technology majors who are outsiders in the utility industry but are still driving big innovations in the Smart Grid area

Speeding Up the Hydrogen Highway

The Hydrogen Station Equipment Performance device, or HyStEP, could reduce the time to commission new stations from months to just one week.

Ultracapacitors on the Road

We'll soon start to see a hybrid energy-storage solution of batteries and ultracapacitors to address multiple applications simultaneously, like e-turbo, active suspension, regeneration, power steering, electric brake boosters and more.

Breakout Year for Energy Storage

Locational Capacity will be the dominant application in 2016. In other words, battery systems targeted at the grid's most congested load centers will be first and foremost used to provide four hours of peak shaving capability, and other grid balancing services when available.

Energy Storage in Underwater Balloons

Tom Lombardo for Enegineering.com :  Grid-level energy storage takes many forms, including flow batteries, Li-ion batteries, pumped hydro, compressed air in underground caverns, and even flywheels. Toronto’s Hydrostor just added another tool to the arsenal: underwater compressed air energy storage (UCAES). Hydrostor recently activated a pilot UCAES plant - the first of its kind - that will provide grid-level storage for the city of Toronto. In addition to supplying the city with cost-effective energy storage, the system will allow engineers to study its behavior and optimize the design. Can UCAES become a viable energy storage technology? The idea has been around for many years: when supply exceeds demand, use the excess energy to run an air compressor and store the air in an underwater balloon. When power is needed, open a valve and let the compressed air run a turbine to generate electricity. The principle is simple, but the economic feasibility has yet to be demonstrated. Hydrostor hopes that their facility becomes the proving ground.   Cont'd...  

Tidal power: An inside look at how it works

From EnergyDigital:  Tidal power, a sister resource to wind, takes advantage of the predictability of the ocean tides to generate electricity, either via estuary barges or directly from the currents themselves via tidal streams. According to the Ocean Energy Council, the ideal area to net the most potential power is an area with a tidal range of at least seven meters. Energy can be generated via floating devices that drive hydraulic pumps, oscillating water columns within cylindrical shafts to create air movement, or hydropower turbines. The Pacific Northwest coast of the United States is an excellent location for tidal power, given its broad range of tide movement. According to Renewable Northwest, some areas of potential development include: • Makah Bay, Washington (by AquaEnergy Group) • Newport, Oregon (by Oregon State University / Oregon Department of Energy) • Tacoma Narrows (by Tacoma Power) • Puget Sound (by Snohomish County Public Utility District) The following sites are under development in Wales due to their wide tidal height variation and economically receptive marketplace: • Swansea Bay (by Tidal Lagoon Swansea Bay) • St. Asaph (by North Wales Tidal Energy & Costal Protection) As a whole, the UK has the potential for over 11,000 MW, a staggering amount given the relatively small landmass of the country. This makes it the single largest source of hydrokinetic power in Europe, enough theoretically support 10 percent of the world’s energy consumption.   Cont'd...

Small-scale solar power growing in the United States

By Daniel J. Graeber for UPI.com:  Small-scale solar installations in the United States account for about a third of the overall capacity on the grid, a report from the federal government said. The U.S. Energy Information Administration estimates total U.S. solar-power output in September, the last full month for which data are available, at 3.5 million megawatt hours. Of that, just more than 30 percent came from small-scale solar installations. "Generation from roof-top photovoltaic systems has become an increasingly important part of total solar generation in the United States," EIA AdministratorAdam Sieminski said in an emailed statement. A September report from the Solar Energy Industries Association, with support from green energy market adviser GTM Research, found second quarter residential solar capacity grew 70 percent year-on-year to 473 megawatts.   Cont'd...

The Fuel Cell Industry Review 2015

The Fuel Cell Industry Review 2015 offers data and analysis by region, application and fuel cell type and includes objective commentary on key events in the industry over the past year.

Super Cathode Battery Technology

This Q&A will focus on the incorporation of BioSolar Super Cathode technology with lithium-ion batteries - and how your technology can achieve significantly higher capacity with costs below $100/kWh, which is less than half of today's lowest cost lithium-ion batteries.

German battery maker launches scheme to share solar power

Reporting by Vera Eckert for Reuters:  German battery maker Sonnenbatterie has launched a scheme to connect households with solar panels and other consumers, aiming to better distribute surpluses of the renewable energy and help members to become more independent of conventional suppliers. The start-up company hopes the scheme, called "sonnenCommunity", will boost demand for its batteries which store solar power, allowing owners to use the clean energy even when weather conditions are not favourable. SonnenCommunity takes the storage idea a step further, allowing solar power to be shared among its members. Sonnenbatterie said the scheme would initially target the 1.5 million solar power producers who, if they sign up to the community, will receive a battery storage system with a starting price of 3,599 euros ($3,812). But eventually, the offer will also be open to non-producers, it added. If the idea of battery-powered buildings takes off, it could pose a challenge to traditional utilities such as RWE and E.ON, which still derive the bulk of their power from big centralised power stations running on fossil fuels.   Full Article:

Smart Meters - Improved Battery Life

The battery lifetime calculation made at the beginning of a smart meter's deployment project may be impacted by the software upgrades or the increased frequency of index emissions.

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Energy Storage & Grids - Featured Product

Sun Xtender® Deep Cycle AGM Batteries

Sun Xtender® Deep Cycle AGM Batteries

Sun Xtender® Deep Cycle AGM Batteries for renewable energy storage are manufactured in the USA by Concorde Battery Corporation and are built to the same demanding standards crucial to supporting the aircraft industry. To facilitate maximum conductivity & charge acceptance Sun Xtender® batteries are constructed with copper alloy corrosion free terminals & robust intercell connections. Endurance and optimal float life are achieved through plates thicker than the industry standard. Sun Xtender® Batteries' AGM maintenance free design is an ideal solution for off grid and grid tied systems.