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Almaty's Thermal Power Plant-2 (CHPP-2) is on the verge of a significant transformation، shifting from coal to natural gas. This move not only promises environmental benefits but also tackles the challenge of thousands of tons of coal ash accumulated on the plant's premises over the past decade.

The Scale of Coal Waste

CHPP-2 has historically burned approximately 2 million tons of coal annually، generating around 1 million tons of ash. This byproduct has been stored in specialized dry storage facilities. Currently، the ash storage sites at the plant cover at least 200 hectares.

Transition to Gas and Waste Management

The plant is slated for a complete transition to natural gas by the end of 2026. While the switch to gas will halt the production of new ash، the existing waste remains a concern.

Plans for Waste Processing

According to the Ministry of Ecology and Natural Resources of the Republic of Kazakhstan، the CHPP-2 modernization project includes the construction of new evaporation ponds for industrial wastewater، replacing the old hydraulic structures. These new facilities will also handle water contaminated with petroleum products and salts.

Furthermore، AO "Alەس" has entered into an agreement with an investor from China to establish a plant for producing construction compounds and aerated concrete blocks. This facility is projected to process approximately 300،000 tons of ash annually. This initiative is expected to reduce environmental burden and mitigate harmful effects on public health.

The ash-slag waste will be used to create lightweight thermal insulation blocks made from autoclaved aerated concrete. These blocks will incorporate silicon material (ash) and calcium material (lime and cement).

The investor is currently constructing the plant on the CHPP-2 grounds. Additionally، waste from the ash storage sites will be supplied to industrial companies for use in manufacturing building materials and in road construction.

This initiative marks a significant step towards sustainable energy production and effective waste management in Almaty.