As we move towards renewables in our efforts to decarbonise our economies, energy storage is becoming increasingly important. Could householders become an integral part of national electricity networks? When Adam Courtney decided he wanted to reduce the energy bills at his “not particularly energy efficient” Grade II listed house in Godmanchester, England, solar panels were the obvious answer. But, he says, he soon realised that the savings weren’t as great as he’d hoped. Renewable sources of energy don’t necessarily deliver at the right time and cloudy days saw his family drawing heavily on the national grid. Meanwhile, he had spare capacity on sunny days, but got very little in return. “We’d ended up feeding back into the grid, but the payment is tiny, so I ended up thinking ‘why do that?’,” he says. Instead, the data centre owner decided that he himself could make better use of the electricity he was generating, if only he were able to store it for when it was needed. He started researching battery storage – even at one point considering building his own system – before opting for a Tesla Powerwall that can store the excess energy generated by the solar panels. The unit and supporting hardware costs just under £6,000, with installation costs of up to £3,000 on top. But it enables him to buy energy at cheaper times, lowering the running costs of both his home and the family’s two electric cars. “With Economy 7 there’s cheaper electricity at night and the Powerwall knows it’s going to be sunny tomorrow so it knows how much power to buy,” he explains. “My bill was £140 a month, but I spend £25 a month now on electricity, and most of that goes on the cars.” More energy storage providers – such as Ovo Energy, Powervault and Moixa are entering the market – particularly as electric vehicles (EVs) promise to become a useful addition to the domestic energy mix. BMW i3 batteries are already being used to store windfarm energy in Wales, so it makes sense to integrate such car battery tech into homes.
BBC 26th June 2018 read more »
EDF Energy has inaugurated an offshore wind farm and battery storage facility at Blyth and West Burton respectively. The wind farm, located off the Northumberland coast, is made up of five turbines of a total capacity of 41.5MW. It is tethered by gravity based foundations that allow the turbines to float on the surface. This is expected to save on installation costs and enhance the competitiveness of offshore power generation. The 49MW battery storage facility is located at West Burton B power station and is claimed to be the largest project in the new frequency control system in the UK. It aims to improve grid stability and provide rapid response to power fluctuations.
Energy Live News 25th June 2018 read more »
Solar and battery energy storage is to be used to power deliver local flexibility via a virtual power platform after UK Power Networks signed what is thought to be the first commercial contract of its type using residential assets. The distribution network operator (DNO) has agreed a bi-directional contract with Powervault, which will install 40 8kWh batteries in the London Borough of Barnet to aggregate 320kWh of energy storage capacity and deliver localised flexibilities.
Solar Power Portal 25th June 2018 read more »
Edie 25th June 2018 read more »