What are different ways a government can increase investment in a technology or industry?

One of the main elements of the UK government's new Energy Security Bill is a focus on decarbonising heat, including "supporting industry to step up investment in growing the consumer market for heat pumps." Article here

What are some of the different things a government can do to increase investment in a specific technology or industry (ie. tax breaks etc)? Examples related to the heat pump query above would be particularly useful.