Could depleted oil wells be the next step in energy storage?

Power-Technology.com - Quidnet Energy is hoping to revolutionise energy storage with its underground pumped hydro concept, which uses abandoned oil and gas wells to store and release pressurised water, driving turbines and feeding electricity back into the grid. How does the concept work and how far could it go? Quidnet co-founder Aaron Mandell explains.

As the cost of renewable energy continues to decline and intermittent clean power sources such as wind and solar gain ever an ever larger foothold in the global energy mix, the ability to store energy that can be quickly dispatched when needed has become as important as the development of renewables themselves.

Robust storage options could allow for greater integration of intermittent renewables, as they facilitate flexible capacity-building that relies far less on coal and gas-fired plants for baseload generation, meaning energy storage is a key step in the journey to wean the world off its fossil fuel addiction.  Full Interview:

Microinverters from Darfon Solar

With the advent of rapid shutdown, we see a move to more Module Level Power Electronics (MLPE).

INTERSOLAR ENTERS ONE OF THE MOST PROMISING, BUT CHALLENGING PV MARKETS

The Iranian Deputy Minister for Energy, Dr. Sattar Mahmoudi, and the Managing Director of the Renewable Energy Organization of Iran (SUNA), Dr. Seyed Mohammad Sadeghzadeh, welcomed more than 400 attendees, twice as many as expected, at the first Intersolar Summit Iran in Tehran on November 15, 2016. Main discussions were about grid-integration solutions, financing and foreign investments.

Tesla powers a whole island with solar to show off its energy chops

James Vincent for The Verge:  Tesla completed its $2.6 billion acquisition of SolarCity this week, and, to celebrate, the company has announced a major solar energy project: wiring up the whole island of Ta’u in American Samoa. Previously, the island ran on diesel generators, but over the past year Tesla has installed a microgrid of solar energy panels and batteries that will supply "nearly 100 percent" of power needs for Ta’u’s 600 residents.

The project seems intended to show off the potential benefits of the SolarCity acquisition, with Ta’u’s microgrid comprised of 5,328 solar panels from SolarCity and Tesla, along with 60 Tesla Powerpacks batteries for storage. But buying SolarCity remains a risky move for Tesla, with the purchase including billions of dollars of debt for a company that's far from profitable (SolarCity spends $6 for every $1 it makes in sales). Nevertheless, Tesla CEO Elon Musk describes the acquisition as "blindingly obvious" — a necessary step in his so-called "Master Plan" to integrate clean energy generation and storage.  Cont'd...

Update on Energy Storage in the USA

Faster-responding storage allows us to operate the grid more efficiently, instantly balancing fluctuating supply and dynamic demand.

Integrated Energy Systems

Opportunities for solar installers to offer storage as an integral part of their solutions are opening up everywhere, from mitigating the impact of power outages, the increase in distributed renewable generation at times of low use, the rising costs of base and peak power and the trend of some states to reduce or eliminate net metering programs.

SunTegra Teams Up With Brookside Development To Offer "Solar Roofs" in Connecticut

First Installation Receives "The Best Green Energy Efficient Home" Award in the Home Builders & Remodelers Association of Connecticut's 2016 Home Building Industry Awards

Stem Becomes First Energy Storage Provider to Meet Crucial Reliability and Performance Requirements for Southern California Edison

Achieves numerous industry firsts based on diversity of systems, customers, and experience deploying and controlling systems.

Power to the people: Solar panel sales to soon surpass leasing

Lucas Mearian for ComputerWorld:  Direct ownership of solar power panels will overtake third-party ownership next year as more consumers are choosing to buy, rather than lease, their panels.

According to GTM Research's latest report, U.S. Residential Solar Financing 2016-2021, 55% of all U.S. residential solar capacity installed in 2017 will be purchased by customers paying either in cash, or through a solar loan financing arrangement; that number is expected to grow to 73% of all solar systems installed in 2021.  Cont'd...

Want to boost wind and solar power? Bring them together

Ben Jervey for GreenBiz:  What’s keeping solar and wind power from fully taking over the electric grid? For starters, the sun only shines during the day. Wind blows intermittently, is seasonally variable, and is not always blowing when the energy is needed.

But what if solar and wind work together?  "Wind resource tends to complement solar resource," said Sarah Kurtz of the U.S. Department of Energy’s National Renewable Energy Laboratory. "Here in Colorado, for instance, the windiest time is during the winter and spring months. In winter, we don’t have as much sunshine, but we tend to get more wind and stronger wind."

A handful of enterprising renewable energy developers are exploring how solar and wind might better work together, developing hybrid solar-wind projects to take advantage of the power-generating strengths of each — with the two technologies in tandem serving as a better replacement for climate-warming fossil fuels than either could be alone.  Cont'd...

BREAKING: Tesla, SolarCity merger approved with 85% shareholder support

Utility Dive:  More than 85% of Tesla's unaffiliated shareholders voted in favor of the $2.6 billion deal with SolarCity, which will allow the companies to move forward with an integrated solar roof and battery storage offering.  Cont'd...

 

Baker Electric Solar Steps Up Support of San Diego Food Bank's Need to Feed

Baker Electric Solar is a proud sponsor and on-going supporter of the Jacobs & Cushman San Diego Food Bank and their sister organization North County Food Bank

EDF and STORNETIC Start Project on Advanced Smart Grids Storage Solutions

Flywheel Energy Storage device DuraStor® to be installed near Paris

Energy Storage Set to Transform U.S. Power Grid

The nation's power grid will undergo a significant transformation over the next 10 years due in large measure to the emergence of cost-effective energy storage, according to a new study released today by Mortenson.

Huge Boost in Grid-Connected Energy Storage Leads to 4.5 Gigawatt Opportunity for inverter suppliers, IHS Markit Says

10-99 kW inverter shipments to grow the fastest driven by the surge in commercial and industrial systems

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Energy Storage & Distribution - Featured Product

OutBack Power - Radian series Inverter/Charger and Integrated Battery Rack

OutBack Power - Radian series Inverter/Charger and Integrated Battery Rack

Off-grid or on-grid, system designers and installers now have a comprehensive power conversion and storage solution from the name they trust: OutBack. Engineered from the ground up, OutBack's preassembled systems make balance-of-system components easier to specify and install in any residential or commercial installation. The Radian packs over 8,000 Watts of pure sine-wave continuous power and can be stacked into an 80 kW configuration for larger applications. The Integrated Battery Rack (IBR) is a 28.8 kWh one-box solution with all electrical connections made at the factory and shipped fully-assembled (without batteries) for quick connection on the jobsite.