arXiv:2507.22911v1 Announce Type: cross Abstract: Electric power marketing customer service plays a critical role in addressing inquiries, complaints, and service requests. However, current systems, such as China's 95598 hotline, often struggle with slow response times, inflexible procedures, and limited accuracy in domain-specific tasks. While large language models (LLMs) like GPT-4o and Claude 3 demonstrate strong general capabilities, they lack the domain expertise and empathy required in this field. To bridge this gap, we introduce ElectriQ, the first benchmark designed to evaluate and enhance LLMs in electric power marketing scenarios. ElectriQ consists of a dialogue dataset covering six key service categories and introduces four evaluation metrics: professionalism, popularity, readability, and user-friendliness. We further incorporate a domain-specific knowledge base and propose a knowledge augmentation method to boost model performance. Experiments on 13 LLMs reveal that smaller models such as LLama3-8B, when fine-tuned and augmented, can surpass GPT-4o in terms of professionalism and user-friendliness. ElectriQ establishes a comprehensive foundation for developing LLMs tailored to the needs of power marketing services.