There are several drivers for the growth of the oil and gas waste heat recovery market, including:

1. Increasing Energy Efficiency: With rising energy costs, there is an increasing focus on energy efficiency in the oil and gas industry. Waste heat recovery systems can help to recover and reuse heat that would otherwise be wasted, reducing energy consumption and costs.

2. Regulatory Compliance: Governments around the world are implementing regulations aimed at reducing greenhouse gas emissions and improving energy efficiency. Waste heat recovery systems can help companies meet these regulations and avoid penalties.

3. Environmental Concerns: The oil and gas industry is under increasing pressure to reduce its environmental impact. Waste heat recovery systems can help to reduce greenhouse gas emissions and other pollutants, improving the industry's environmental performance.

4. Cost Savings: Waste heat recovery systems can help to reduce energy costs and improve the bottom line for oil and gas companies. By recovering and reusing waste heat, companies can reduce their energy consumption and save on fuel costs.

5. Technological Advancements: Advances in waste heat recovery technology have made these systems more efficient and cost-effective, making them a more attractive option for oil and gas companies.