STOCK WATCH

SHARES at Windar Photonics rose by more than a tenth after the renewable energy firm reported rising turnover and falling costs.

The firm makes wind sensors for the operation of electricity-generating wind turbines.

It saw revenues in the first half of the year grow 62pc year-on-year to £1.2m.

This is also higher than last year’s total revenues of £1.1m.

Likewise, operational costs fell by nearly half to £890,000. Shares rose by 12.2pc, or 9p, to 82.5p.