Westar Energy

aid: westar-energy
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/westar-energy.png
name: Westar Energy
url: https://raw.githubusercontent.com/api-evangelist/westar-energy/refs/heads/main/apis.yml
modified: '2026-05-03'
description: Westar Energy was the largest electric utility in Kansas, providing electric service to homes, businesses, and
  industries throughout Kansas before merging with Great Plains Energy in 2018 to form Evergy, Inc. As Evergy, the company
  continues to serve approximately 1.6 million customers in Kansas and Missouri with a focus on grid modernization, smart
  metering (AMI) through its Gridstream Connect IoT platform, and clean energy transformation including wind power and demand
  response programs.
tags:
- Electric Utility
- Energy
- Smart Grid
- Kansas
- AMI
- Evergy
- Utilities
- Fortune 1000
created: '2026-03-24'
specificationVersion: '0.19'
apis: []
common:
- type: DomainSecurity
  url: security/westar-energy-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/westar-energy
- type: Website
  url: https://www.evergy.com/
  title: Evergy (formerly Westar Energy)
- type: Portal
  url: https://www.evergy.com/manage-account/my-account
  title: My Account Portal
- type: Documentation
  url: https://www.evergy.com/
- type: Features
  data:
  - name: Smart Metering (AMI)
    description: Advanced Metering Infrastructure with Gridstream Connect IoT platform providing near real-time electricity
      usage data, outage detection, and remote meter reading for 1.6 million customers.
  - name: Energy Usage Data Access
    description: Customer-facing energy usage analytics and comparison tools enabling visibility into historical consumption,
      billing trends, and efficiency benchmarking.
  - name: Time-of-Use Rates
    description: Smart meter-enabled time-of-use and demand-based rate programs providing price signals and automated demand
      response capabilities.
  - name: Green Button Data
    description: Standardized NAESB ESPI energy usage data download capability allowing customers and third parties to access
      electricity consumption data in Green Button format.
  - name: Grid Modernization
    description: Distribution automation, substation digitization, high-voltage transmission upgrades, and distribution system
      modernization enabling smart grid operations and clean energy integration.
  - name: Rooftop Solar Integration
    description: Net metering programs and interconnection services for distributed energy resources including rooftop solar
      and battery storage systems.
- type: UseCases
  data:
  - name: Energy Usage Monitoring
    description: Access granular electricity consumption data for homes and businesses to identify energy waste and optimize
      usage patterns.
  - name: Demand Response
    description: Participate in utility demand response programs through smart thermostat and device control integrations
      using time-of-use pricing.
  - name: Solar and DER Integration
    description: Connect distributed energy resources including rooftop solar and battery systems to the grid through standardized
      interconnection and net metering programs.
  - name: Business Energy Management
    description: Access interval meter data for commercial and industrial customers to support energy management systems,
      sustainability reporting, and operational efficiency programs.
- type: Integrations
  data:
  - name: Landis+Gyr AMI
    description: 13-year contract for Gridstream Connect smart meter network management, software hosting, and field maintenance
      for AMI infrastructure.
  - name: Green Button Alliance
    description: Energy usage data standard compliance enabling customers to share electricity data with authorized third-party
      apps and services through standardized NAESB ESPI REST APIs.
  - name: Smart Thermostat Programs
    description: Integration with smart home devices and thermostats for demand response and energy efficiency programs.
- type: Integrations
  url: https://www.evergy.com/integrations
integrations:
- name: Google Play store button
- name: Apple app store button
- name: Facebook
- name: Twitter
- name: YouTube
- name: LinkedIn
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com