Kauai Island Utility Cooperative (KIUC) Data Access Guide

Kauai Island Utility Cooperative (KIUC) is Hawaii's only electric cooperative, serving about 35,300 member-owners on the island of Kauai. Members access billing and hourly/daily usage through the NISC SmartHub portal, with 15-minute AMI interval data available on request; third-party access runs through KIUC's Account Authorization form and a manual data-request process rather than Green Button, EDI, or a public API.

Hawaii · Electric Cooperative·35,316 customers·Last updated May 28, 2026

How to Get Your Kauai Island Utility Cooperative (KIUC) Data: All Access Methods

Method1st Party3rd PartyCustomer TypesData TypesLatencyFormat
SmartHub Web PortalAll member-ownersBilling, hourly/daily usageDaily/hourlyPDF / CSV
Account Authorization FormConsultants, energy managers (with customer sign-off)Billing history, usage data5-10 business daysPDF / CSV via email
Direct Interval Data RequestMembers and authorized third parties15-minute/hourly interval kWh5-10 business daysCSV
SmartHub API (reverse-engineered)Technically capable members (unsupported)15-minute interval consumptionNear-daily via scriptsCSV / JSON
01

Billing Data Access

KIUC provides billing access through the NISC SmartHub portal and mobile apps: current bill, billing history, and PDF downloads, with payment processing. Third parties obtain billing data via KIUC's Account Authorization form and direct requests to customer service, delivered as PDF or CSV in roughly 5-10 business days.

What Data Is on Your Kauai Island Utility Cooperative (KIUC) Bill

  • Monthly consumption (kWh)
  • Demand charges (where applicable)
  • Fuel and purchased power charges
  • Rate schedule information
  • Account status
  • Payment history

How to Download Kauai Island Utility Cooperative (KIUC) Bills (Business & Commercial)

  1. 01Confirm SmartHub availability for the business account with KIUC
  2. 02Log in and review billing history and demand charges
  3. 03Export bills as PDF; request CSV usage exports for analysis
  4. 04For bulk or extended data, submit a written request referencing the account number
  5. 05Authorize consultants via the Account Authorization form for ongoing third-party requests

How to Download Kauai Island Utility Cooperative (KIUC) Bills (Residential)

  1. 01Navigate to https://kiuc.smarthub.coop/ and log in with KIUC credentials (call 808.246.4300 if you need access)
  2. 02View the current bill and due date on the dashboard
  3. 03Open billing history within SmartHub
  4. 04Download bill documents as PDF
  5. 05Optionally enroll in automatic payments

Third-Party Access to Kauai Island Utility Cooperative (KIUC) Billing Data

Account Authorization request

  1. 01Download the Account Authorization form from https://kiuc.coop/forms
  2. 02Customer completes name, account number, and third-party contact details, then signs
  3. 03Submit by mail (4463 Pahee Street, Suite 1, Lihue, HI 96766), email (info@kiuc.coop), or office drop box
  4. 04Third party requests data from KIUC at 808.246.4300 once authorization is on file
  5. 05Receive PDF bills or CSV data by email within ~5-10 business days
PDF (bills)CSV (usage/interval exports)HTML web portal

Want to understand the charges on your bill?

See the Kauai Island Utility Cooperative (KIUC) Rate Schedules & Tariff Guide →

02

Interval Data & Smart Meters

KIUC deployed AMI smart meters under an NRECA Smart Grid Demonstration Project funded by the U.S. DOE and completed an AMI-based load research study. Meters record 15-minute intervals; SmartHub displays hourly and daily consumption with CSV export, while 15-minute data requires a direct request to KIUC or the community reverse-engineered SmartHub API.

Meter Technology
AMI smart meters (NRECA/DOE Smart Grid Demonstration Project deployment); NISC iVUE CIS with SmartHub portal.
Electric Granularity
15-minute interval recorded; hourly/daily visible and exportable in SmartHub

How to Download Kauai Island Utility Cooperative (KIUC) Interval Data

  1. 01Log into https://kiuc.smarthub.coop/
  2. 02Open the Usage/Consumption section to view hourly and daily charts
  3. 03Export usage data to CSV (web exports show hourly granularity as of January 2024)
  4. 04For 15-minute data, request directly from KIUC (808.246.4300 / info@kiuc.coop) with account number, date range, and CSV format
  5. 05Advanced users: community tools like electric-usage-downloader pull 15-minute data via the unofficial SmartHub API

Interval data is essential for rate comparison and TOU analysis.

See which Kauai Island Utility Cooperative (KIUC) rate schedule is best for your usage pattern →

03

Green Button Access

Download My Data

KIUC has not announced Green Button Download My Data support. Hawaiian Electric (HECO) on the other islands supports Green Button, but KIUC has no public roadmap.

Connect My Data

Green Button Connect My Data is not implemented at KIUC; contact the cooperative to request it.


04

Third-Party API Access

KIUC publishes no official API, developer portal, or aggregator program. The NISC SmartHub API has been reverse-engineered by the open-source community (electric-usage-downloader, Python/Go tools, Home Assistant integration) for 15-minute interval downloads with member credentials, but it is unsupported. Formal third-party access uses the Account Authorization form plus manual requests handled by KIUC staff; aggregators can negotiate custom arrangements (e.g., SFTP batch CSV) directly.

Program
Account Authorization (manual process)
Auth Method
Signed Account Authorization form on file with KIUC; unofficial API uses SmartHub member credentials (OAuth-style token)
Interval Latency
15-minute data on request; unofficial API near-daily

How to Register as a Kauai Island Utility Cooperative (KIUC) API Vendor

  1. 01Have the customer sign KIUC's Account Authorization form and submit it to KIUC
  2. 02Contact KIUC at 808.246.4300 or info@kiuc.coop with account number, date range, and format (CSV preferred)
  3. 03Receive data by email; each request is handled manually by staff
  4. 04Aggregators: propose a custom arrangement (SFTP delivery, batch CSV, bulk enrollment) with KIUC Business Services
  5. 05Alternatively, use Nectar's API for programmatic billing and interval data access — see docs.nectarclimate.com

05

EDI (Electronic Data Interchange)

KIUC has no formally documented EDI program: no trading-partner enrollment, ANSI X12 specifications, VAN recommendations, or testing procedures are published. The NISC iVUE CIS may have internal EDI capability, and businesses can ask KIUC Business Services (808.246.4300) about custom arrangements such as CSV/XML delivery over secure SFTP. Hawaiian Electric's Aggregator Handbook illustrates what enterprise EDI looks like in Hawaii, but it does not apply to KIUC.


06

Rate Schedules & Tariff Analysis

KIUC publishes its rate schedules and tariffs at kiuc.coop/tariffs, including advanced rate pilots such as the Time-of-Use Solar Rate. Bills include fuel and purchased power charges alongside energy and demand charges for applicable classes.

Kauai Island Utility Cooperative (KIUC) Rate Features & TOU Details

  • Fuel and purchased power cost components on bills
  • Demand charges for applicable commercial classes
  • Time-of-Use Solar Rate pilot enabled by AMI metering

For a deeper analysis including cost optimization strategies and historical rate trends:

Read the full Kauai Island Utility Cooperative (KIUC) Rate Optimization Guide →

07

Other Data Access Programs

Time-of-Use Solar Rate Pilot

KIUC runs advanced rate pilots, including a Time-of-Use Solar Rate pilot enabled by its AMI smart meter deployment.

Home Assistant SmartHub Integration

Community ha-smarthub-energy-sensor integration connects SmartHub usage data to home automation platforms; unofficial and unsupported by KIUC/NISC.


08

Limitations & Considerations

  • No Green Button Download My Data or Connect My Data; no public roadmap.
  • No official API or developer portal; the SmartHub API is reverse-engineered and unsupported.
  • No formal EDI program (no X12 specs, trading-partner enrollment, or VAN guidance).
  • Third-party access is fully manual: Account Authorization form plus staff-handled requests with 5-10 business day turnaround.
  • SmartHub web CSV exports show hourly data; 15-minute granularity requires a special request, and the historical retention window is unpublished.

09

Kauai Island Utility Cooperative (KIUC) Data Access FAQ

How do C&I customers access usage data from KIUC?

Log into SmartHub at https://kiuc.smarthub.coop/ for billing history and hourly/daily usage charts with CSV export. For 15-minute interval data, submit a direct request to KIUC at 808.246.4300 or info@kiuc.coop with the account number, date range, and CSV format; expect 5-10 business days.

Does KIUC offer Green Button or a public API?

No. KIUC has not implemented Green Button DMD or CMD and publishes no official API. The NISC SmartHub API has been reverse-engineered by open-source tools (electric-usage-downloader) for 15-minute interval pulls using member credentials, but it is unsupported and may change without notice.

How does an energy consultant get authorized access to a member's KIUC data?

Have the customer complete and sign KIUC's Account Authorization form (kiuc.coop/forms) naming your firm, then submit it by mail, email (info@kiuc.coop), or drop box. Once on file, you can request bills (PDF) and usage data (CSV) directly from customer service, delivered by email in roughly 5-10 business days.

Does KIUC support EDI for enterprise billing integration?

No formal EDI program exists — no X12 specifications, trading-partner enrollment, or VAN guidance. KIUC's NISC iVUE platform may support custom exchanges; contact Business Services at 808.246.4300 to discuss alternatives such as CSV/XML delivery over secure SFTP.

What interval granularity do KIUC smart meters record?

KIUC's AMI meters, deployed under a DOE-funded NRECA Smart Grid Demonstration Project, record 15-minute intervals. SmartHub's web CSV export surfaces hourly data; the full 15-minute resolution is available via direct request to KIUC or the unofficial SmartHub API.

Can Kauai businesses shop for a competitive electricity supplier?

No. Hawaii has no retail electricity choice, and KIUC is the sole provider on Kauai as a member-owned cooperative under Hawaii PUC oversight. Rate optimization comes from schedule selection and pilots like the Time-of-Use Solar Rate rather than supplier shopping.

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