RENEWABLE energy specialist Flextricity has developed a product it reckons will help firms make profitable use of wind farm output that might otherwise go wasted. The Edinburgh-based firm said its Footroom automated service helps manufacturers and the like increase production when wind farm output could potentially at its greatest, in the process triggering increased demand for energy. Flextricity noted that the National Grid turns off some wind farms when the wind is at its strongest because the output does not appear to be required. It said Footroom sends a signal to connected businesses, notifying them of an approaching increase in wind and the opportunity to demand more energy. Those who respond receive a payment in addition to the extra electricity required.