Showing posts with label on grid. Show all posts
Showing posts with label on grid. Show all posts

Monday, August 12, 2013

Energy Storage: Rural Electrification’s Backup


"Energy storage represents a key element to ensure the proper functioning of any system and will contribute to the positive development of the entire industry."










The Alliance for Rural Electrification (ARE)’s objective is to stimulate economic development through the promotion of off-grid renewable energy technologies for rural electrification in developing countries and emerging markets. While often grid extension is not a feasible option, decentralized solutions are often the better alternative to alleviate energy poverty: they are cost-effective over the system’s lifetime, easy-to-deploy, install and maintain and their design can be tailored to demand needs. Plus, these regions offer abundant renewable energy resources.



Despite the solid arguments to support off-grid renewables as the best solution for remote areas, there is still one open question: What happens with the electricity service when the sun stops shining or the wind doesn't blow? No doubt this is a relevant issue which may prevent local energy decision makers from including renewable energy sources in their rural electrification plans. Fortunately, present markets offer technologies that enable storing energy for its use at a later time. Many of these solutions have reached maturity and therefore are being increasingly used to improve efficiency, reliability and price-competitiveness of electricity services as well as to achieve deeper penetration of renewable energy systems.

Energy storage technologies can be applied twofold: First for off-grid systems installed in rural areas, and second for decentralized grid backup in peri-urban areas that remain under-electrified.

To ease the path to these solutions, ARE has launched the six-month “Energy Storage Campaign.” This initiative aims to inform decision makers in Africa, Asia and Latin America about the added value that energy storage offers to rural areas.

It’s All Happening

The success of the campaign has been built upon the expertise of a group of rural electrification experts. These nine members of the Alliance based in three different continents and with a wide experience on the topic have formed the ARE Energy Storage Task Force with the objective of shaping this initiative and to find answers to ‘What really matters!’

As a result, the ARE Secretariat jointly with the Energy Storage Task Force has developed the position paper Using batteries to ensure clean, reliable and affordable universal electricity access. This guide paper includes information and recommendations for decision makers, applications of the different types of battery technologies, as well as successful case studies from India, Bangladesh, Jordan, Peru and Mozambique. The position paper has a focus on electromechanical energy storage, in particular on four different families of batteries, as they remain the main technology applied to off-grid.


Energy storage represents a key element to ensure the proper functioning of any system and will contribute to the positive development of the entire industry:
Batteries will improve the system’s performance and lead to economic savings over its lifetime and thereby lower operational costs if properly designed and maintained. In this regard, it is of utmost importance to use certified equipment and observe international standards while designing, installing and operating the system in order to ensure its longevity.
The stand-by battery market is expanding rapidly in developing and emerging markets, which represent important growth niches for the sector. The increasing demand of batteries can facilitate deeper penetration of intermittent renewables in these regions. For example, whereas Africa represented the smallest market for European stand-by battery systems (2V cells and mono blocks) in 2011 with 3.5 percent of total sales, it was the region in the world which enjoyed by far the highest growth rates with an increase of 25 percent compared to the year before.
Batteries play two major roles in terms of energy management. Short-term: The battery regulates the system by absorbing or supplying power to maintain a balance between instantaneous power production and consumption. Long-term: Allows storing electricity at a period of peak production, thus avoiding wastage of energy at times when it is not required and supplying energy when intermittent primary energy resources are unavailable.
The remote areas where off-grid renewable energies operate are vast and diverse. Thanks to the existence of different chemical battery families, each of them with its own specific features, storage systems can be designed to play a wide range of roles perfectly fitting local conditions.


Not without the Public Sector

Energy storage applied to rural electrification is attracting a lot of attention these days. However, these are still young markets which need more explanation and promotion. The support from public authorities, particularly regulators, as well as power sector technical bodies -such as rural electrification agencies and public utilities-would certainly help stimulate more investments in the market. To enhance developments, ARE has formulated the following recommendations for decision makers:
Developing and enforcing a well fitted regulatory framework is critical to ensure the market’s sustainable development and consumer’s trust.
A well tailored framework should be complemented via awareness creation campaigns and technical assistance to the operations sector (manufacturers, installers, operators, recyclers).
Establishing policy targets for batteries, as it is done for renewable energies, could help stimulate the sector’s development.
The achievement of these targets should be stimulated with the establishment of specific support schemes and assistance to the financing sector.

Learning from the Past to Improve the Future

The kick-off of the “Energy Storage Campaign” was held at Intersolar Europe in June 2013, where ARE celebrated a successful workshop as official side event of the conference. Further promotion activities will include several webinars in collaboration with international organisations such as the United Nations Foundation Energy Access Practitioner Network, the creation of new papers on other storage technologies, as well as other workshops in international events, among others.

Thanks to the experience gained with the “Small Wind Campaign”, the expertise of the Energy Storage Task Force and the support of the industry, ARE expects to facilitate business dialogue between private and public sector on the advantages of energy storage.

This is not the first time ARE has launched such a campaign. Last year the focus was small wind power, and now it is the turn of energy storage, a technology that undoubtedly will make a difference in the long way towards achieving universal access to reliable and sustainable electricity in remote areas.





Source: Renewable Energy World












Saturday, August 10, 2013

SMA SPS - SECURE POWER SUPPLY on SMA Sunny Boy 3000TL US 4000TL US 5000TL US

"If the Sun is Up and the Grid is Down ..."

Here is a short video of the great feature SMA inverters can offer: the SPS for Secure Power Supply

Usually, on all inverters, in case of a power outage, a mandatory feature is the automatic cut off of production to protect grid workers from electric shock

If the grid is down and your solar roof is still in the sun, you can now have the inverter keep producing on dedicated outlets controlled by a switch that triggers this function on the system... What a great idea !






Monday, July 22, 2013

DIY ESS Kit - Kit #1 for Sale, Now it's your turn !

Now that the Kit Building Documentation, the Components List, the User Manual are finished, and that the first 5 Arduino Leonardo boards have been shipped to me, I am happy to announce that I can start selling the first kit of my LiFePO4 DIY ESS : Kit #1 for 490 EUR



Now it's your turn !


DIY ESS Kit #1 is composed of the base to build your own LiFePO4 ESS :

- The brain of the system : Arduino Leonardo board flashed with my Program : Save hundreds of hours of testing, tuning and programming

+ PROGRAM


- The Kit Building Documentation: Detailed steps to build the ESS, even if you are not a specialist 



- The Components List: Simply lists all the Components needed and the Vendors contact details


- The User Manual: The daily use instructions, including Safety and Battery Pack protection hints




  And this is what you should get:

If you want to purchase the DIY ESS Kit #1, please get in touch with me by Email providing your Name & Shipping Address

Sunday, July 21, 2013

DIY ESS Kit User Manual is finished

Finally the last document for the build of the DIY ESS is written, just finished it 5 minutes ago
After the Kit Building Documentation and the Components List, this last step will cover the daily use of the newly built DIY ESS:

- In Case of any Problem/Emergency

- Switch ON the ESS

- Switch OFF the ESS

- Protecting the ESS battery pack for long period of no use

- Protecting the ESS battery pack from Low Generation or No Generation at all

- Forced Charge Mode






Friday, July 12, 2013

2nd Full Day of Solar Generation & Self Consumption

July 10th, 2013 : 2nd Full Day of Solar Generation & Self Consumption

In the morning, as soon as the SMA Sunny Boy inverter starts producing solar juice (Left Silver Wattson), my ESS starts switching on chargers to make the Net Usage stay close to 0W (Right White Wattson)

and the production rises, so does the number of chargers involved in storing all the excess solar power into the ESS battery bank made of - the best - CALB CA180FI LiFePO4 cells

Still close to 0W during my coffee break at the office


Wattson on my iPhone shows me the rise in Production ... and in Storage


Now Production is at 850W, and still only 35W of Net Usage, meaning all the rest is stored





...

By the end of the day, the battery is almost full, and because it is summer and we are not using so much electricity this time of the year besides cooking, a big part of the ESS energy is dumped in heating the water heater, until it stops, but sometimes it contributed for half or more ...

Thursday, September 27, 2012

ExSolar - Home Solar Power Installation

Martin Lorton shows us his home solar installation and it is very interesting ! A must watch :-)
He explains his choice of solar panels type, grid tie inverter, battery bank, battery charger, energy monitor, and off grid mode switching


On the roof with the solar arrays: his choice: 2000W of monocritallin type panels

His Victron inverters: one the right, a regular grid tie one, and on the left it is a charger/off grid inverter using the battery bank only when the mains is switched off (the orange box is a high DC current switch)

Here, on the left is the power company meter and on the right the battery bank monitor (Victron)

Home electricty panel with a main switch allowing to connect to the grid (power company) or to the battery bank powered inverter (left Victron blue on the second pictures above)

This is the energy monitoring on a computer

The battery charger/off grid inverter system is a Victron Quattro
It has a computer based interface to set up thresholds, timers and behaviours for complete automation

Monday, September 17, 2012

How to Solar Power Your Home / House #1 - On Grid vs Off Grid

Martin Lorton lives in Cape Town, South Africa and does great video technical reviews

In this one he goes through the components that are part of a solar power solution and explains the differences between On-grid vs. off grid.



His roof solar setup


Outback Flexmax Battery Charge Controller


Victron Grid Tie Inverters


White board diagram explanation and comparison of ON GRID / OFF GRID

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