Mar 2013
Electricity Transmission
Effective Protective Coatings for OHL Towers
Mar 2013
National Grid Electricity System Operator
National Grid TO Innovation Team
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Innovation Funding Incentive
Gas Transmission Networks
Impending European legislation may restrict further the use of high Volatile Organic Compound (VOC) paints for any industrial use. The only approved NG tower paint product falls into this category. Maintenance policy requires the painting of approximately 1200 towers per year.

Predicated ongoing spend on tower painting is £6.85 million per year, hence requirements have been identified for continued research to test and evaluate the performance of alternative paint products to ensure the company is prepared for any changes to legislation.

A number of tests have been carried out by EA Technology on behalf of a group of ESI companies. This includes the evaluation of a number of new products and special purpose paint systems.

Inspections of trial towers painted with a newly developed environmentally friendly water based system have also been carried out. NG has requested the opportunity to participate in the final stages of the testing. Participation will ensure access to all test results to date and the final report when complete.