(Updates with comment from National Grid, electricity price)
By Susanna Twidale
LONDON, Oct 15 (Reuters) - Britain's National Grid
said electricity supply margins were likely to be tight in the
country over the next few days but said it would have adequate
National Grid is responsible for ensuring supply and demand
are balanced in Britain's energy systems.
"Unusually low wind output coinciding with a number of
generator outages means the cushion of spare capacity we operate
the system with has been reduced," National Grid Electricity
System Operator (ESO) said on Twitter.
The grid has a number of tools to help balance supply and
demand and paid power producers such as nuclear generator EDF to
reduce output over the summer when demand was weak.
"Margins remain adequate for today and we’re continuing to
monitor the situation for the coming days," a spokesman for
National Grid said via email.
"We were in touch with providers in the market... to make
sure there was as much generation available as possible to
operate the system securely today," the spokesman said.
National Grid said it had not needed to issue formal system
notices to the market which call on generators to ramp up or
reduce electricity production.
British wholesale electricity prices for day-ahead delivery
rose around 20% on Thursday to 60 pounds per megawatt
Gas power plants were supplying around 55% of the country's
electricity on Thursday morning, with nuclear at 16% and wind at
15%, National Grid data showed.
(Reporting by Susanna Twidale; Editing by Edmund Blair and