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How Local Electricity Networks Can Cope With Charging Clusters Of EVs: My Electric Avenue

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My Electric Avenue is a three-year Ofgem-funded project that has been carrying out trials to discover the impact that charging clusters of electric vehicles (EVs) might have on local electricity networks at peak times.

As sales of plug-in cars continue to rise, and as EVs gain ever-larger battery capacities, the trial results show that collaborative action will be needed by the energy and automotive industries to support the growing demand for EV charging in some areas of the UK, and that some of the smart solutions that the industry is developing can help.

My Electric Avenue has been hosted by Scottish and Southern Energy Power Distribution and led by EA Technology. It has been funded through Ofgem’s Low Carbon Networks Fund, with in-kind contribution from key partners. The project has analysed the various kinds of low voltage networks in the UK and four types are expected to experience issues due to the uptake of EVs at differing penetration levels.


By recruiting clusters of neighbours around the country who drove Nissan LEAF electric cars for 18 months, the project teams aimed to mimic a future scenario where many people in an area choose to use a pure electric vehicle or plug-in hybrid electric vehicle (PHEV).

The results, which come at a time when sales of plug-in cars have increased by 716% over the past two years, show that across Britain 32% of low voltage (LV) feeders (312,000 circuits) will require intervention when 40% – 70% of customers have EVs, based on 3.5 kW (16 amp) charging. Susceptible networks are typically characterised by available capacity of less than 1.5 kW per customer.

Traditionally, these findings would mean the replacement of underground cables in the public highway, however My Electric Avenue has been trialling a lower cost solution to this in the form of ‘Esprit’. Esprit is an innovative piece of technology that can control the charging of EVs if the local electricity grid reaches a certain level of demand. By incorporating Esprit into networks, the project is the first real-life trial that has directly controlled domestic EV charging to prevent underground cables, overhead lines and substations being potentially overloaded.

Forecasts suggest that Esprit could save around £2.2 billion of reinforcement costs up to 2050. However, for this solution to work, car manufacturers and the energy industry will need to work together more closely.


My Electric Avenue is now coming to an end and it is disseminating its findings so that energy companies, car manufacturers and others can learn from the project.

My Electric Avenue Project Director, Dave Roberts from EA Technology, comments: “The automotive sector has well established and effective communication channels to discuss industry issues. However, historically there has not been much cross-sector communication between the automotive and energy industries. My Electric Avenue has brought these two sectors together and has started dialogue, and this needs to develop further as vehicle manufacturers announce plans for increasing numbers of higher performance plug-in vehicles.”

Stewart Reid, Head of Asset Management and Innovation at Scottish and Southern Energy Power Distribution adds: “The project has been invaluable in showing us what challenges we are likely to face in the near future as more and more customers adopt EVs. It’s also demonstrated that there is a solution which is capable of helping us overcome these challenges before they affect our customers. With new vehicles due to place even greater demands on our networks, we are conscious of the need for both ourselves and the automotive industry to share our learning, challenges and innovations with one another. We are excited at this prospect, which will allow the decarbonisation of our respective industries to continue at pace.”

Olivier Paturet, General Manager – Zero Emission Strategy, Nissan Europe said: “The all-electric Nissan LEAF is a pioneer in its own right and we’re delighted that it has played such a major role in My Electric Avenue’s ground-breaking research. Not only has My Electric Avenue provided us with a greater understanding of the impacts of electric vehicle charging on local grids, but it has also given us a clear vision of what the streets of the future may look like.

“EV sales are increasing at a phenomenal rate in the UK and wider Europe and it’s vital that automakers continue to work closely with the energy industry to progress the EV movement. Nissan is already heavily involved in the development of ‘smart grid’ technologies that will allow EV drivers to proactively manage their electricity use at home and we will be making further announcements on this during the coming months.”

There has been a wide variety of learning outcomes from My Electric Avenue, ranging from its successful customer engagement approach to assessing EV drivers’ acceptability of having their charging externally controlled. All the learning is published on the project’s website.

My Electric Avenue presented the results from the project, and facilitated a discussion about how the UK can deal with this issue going forward, at a ‘Finale’ event in partnership with the event’s host, the Institution of Mechanical Engineers, in London on 3 December 2015.

For the latest and final My Electric Avenue project reports, click here.

Picture: My Electric Avenue participants in Marlow

Energy

Are the UK Governments Plans for the Energy Sector Smart?

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The revolution in the energy sector marches on, wind turbines and solar panels are harnessing more renewable energy than ever before – so where is it all leading?

The UK government have recently announced plans to modernise the way we produce, store and use electricity. And, if realised, the plans could be just the thing to bring the energy sector in line with 21st century technology and ideologies.


Central to the plans is an initiative that will see smart meters installed in homes and businesses the length and breadth of the country – and their aim? To create an environment where electricity can be managed more efficiently.

The news has prompted some speculation about how energy suppliers will react and many are predicting a price war. This could benefit consumers of electricity and investors, many of whom may be looking to make a profit by trading energy company shares online using platforms such as Oanda – but the potential for good news doesn’t end there.

Introducing New Technology

The plan, titled Smart Systems and Flexibility is being rolled out in the hope that it will have a positive impact in three core areas.

  • To offer consumers greater control by making smart meters available for all homes and businesses by 2020. Energy users will be able to monitor, control and record the amount of energy they use.
  • Incentivise energy suppliers to change the manner in which they buy electricity, to offer more smart tariffs and more off-peak periods for energy consumption.
  • Introduce new standards for electrical appliances – it is hoped that the new wave of appliances will recognise when electricity is at its cheapest and at its most expensive and respond accordingly.

How the Plans Will Affect Solar Energy

Around 7 million houses in the UK have solar panels and the government say that their plan will benefit them as they will be able to store electricity on batteries. The stored energy can then be used by the household and excess energy can be exported to the national grid – in this instance lower tariffs or even payment for the excess energy will bring down annual costs significantly.


The rate of return on energy exported to the national grid is currently between 6% and 10%, but there are many variables to take into account, such as, the cost of battery storage and light levels. Still, those with state-of-the-art solar electricity systems could end up with an annual profit after selling their excess energy.

The Internet of Things

Much of what the plans set out to achieve are linked to the now ubiquitous “internet of things” – where, for example, appliances and heating systems are connected to the internet in order to make them function more smartly.

Companies like Hive have already made great inroads into this type of technology, but the road that the government plans are heading down, will, potentially, go much further -blockchain technology looms and has already proved to be a game changer in the world of currency.

Blockchain Technology

It has already been suggested that the peer to peer selling of energy and exporting it to the national grid may eventually be done using blockchain technology.

“The blockchain is an incorruptible digital ledger of economic transactions that can be programmed to record not just financial transactions but virtually everything of value.”

Don and Alex Tapscott, Blockchain Revolution (2016)

The upshot of the government’s plans for the revolution of the energy sector, is that technology will play an indelible role in making it more efficient, more flexible and ultimately more sustainable.

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Energy

4 Case Studies on the Benefits of Solar Energy

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Demand for solar energy is growing at a surprising rate. New figures from SolarPower Europe show that solar energy production has risen 50% since the summer of 2016.

However, many people are still skeptical of the benefits of solar energy.Does it actually make a significant reduction in our carbon footprint? Is it actually cost-effective for the company over the long-run?


A number of case studies have been conducted, which indicate solar energy can be enormously beneficial. Here are some of the most compelling studies on the subject.

1.     Boulder Nissan

When you think of companies that leverage solar power, car dealerships probably aren’t the first ones that come to mind. However, Boulder Nissan is highly committed to promoting green energy. They worked with Independent Power Systems to setup a number of solar cells. Here were the results:

  • Boulder Nissan has reduced coal generated electricity by 65%.
  • They are on track to run on 100% renewable energy within the next 13 years.
  • Boulder Nissan reduced CO2 emissions by 416,000 lbs. within the first year after installing their solar panels.

This is one of the most impressive solar energy case studies a small business has published in recent years. It shows that even small companies in rural communities can make a major difference by adapting solar energy.

2.     Valley Electric Association

In 2015, the Valley Electric Association (VEA) created an 80-acre solar garden. Before retiring from the legislature, U.S. Senate Minority Leader Harry Reid praised the new project as a way to make the state more energy dependent and reduce our carbon footprint.


“This facility will provide its customers with the opportunity to purchase 100 percent of their electricity from clean energy produced in Nevada,” Reid told reporters with the Pahrump Valley Times. “That’s a step forward for the Silver State, but it also proves that utilities can work with customers to provide clean renewable energy that they demand.”

The solar energy that VEA produced was drastically higher than anyone would have predicted. SolarWorld estimates that the solar garden created 32,680,000 kwh every year, which was enough to power nearly 4,000 homes.

This was a major undertaking for a purple state, which may inspire their peers throughout the Midwest to develop solar gardens of their own. It will reduce dependency on the electric grid, which is a problem for many remote states in the central part of the country.

3.     Las Vegas Casinos

A number of Las Vegas casinos have started investing in solar panels over the last couple of years. The Guardian reports that many of these casinos have cut costs considerably. Some of them are even selling the energy back to the grid.

“It’s no accident that we put the array on top of a conference center. This is good business for us,” Cindy Ortega, chief sustainability officer at MGM Resorts told Guardian reporters. “We are looking at leaving the power system, and one of the reasons for that is we can procure more renewable energy on the open market.”

There have been many benefits for casinos using solar energy. They are some of the most energy-intensive institutions in the world, so this has helped them become much more cost-effective. It also helps minimize disruptions to their customers learning online keno strategies in the event of any problems with the electric grid.

4.     Boston College

Boston College has been committed to many green initiatives over the years. A group of researchers experimented with solar cells on different parts of the campus to see where they could produce the most electricity. They discovered that the best locationwas at St. Clement’sHall. The solar cells there dramatically. It would also reduce CO2 emissions by 521,702 lbs. a year and be enough to save 10,869 trees.

Boston College is exploring new ways to expand their usage of solar cells. They may be able to invest in more effective solar panels that can generate far more solar energy.

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