Glendale Water & Power Data Access Guide
Glendale Water & Power (GWP) is the municipal electric and water utility for the City of Glendale, CA, serving about 91,000 electric customers. Business customers access interval data and Green Button exports through the Opower Business Customer Engagement Portal, with AB 802 whole-building benchmarking available for multi-tenant properties.
How to Get Your Glendale Water & Power Data: All Access Methods
| Method | 1st Party | 3rd Party | Customer Types | Data Types | Latency | Format |
|---|---|---|---|---|---|---|
| MyGWP Portal | ✓ | — | Residential, Commercial | Bills | Monthly | PDF, Web UI |
| Opower Business Portal | ✓ | — | Business | Hourly/daily usage, demand | Next-day | CSV, XML |
| Green Button Download (Opower) | ✓ | ✓ | Business | Billing + AMI interval | On-demand | CSV, XML |
| AB 802 Benchmarking | ✓ | ✓ | Multi-tenant commercial | Whole-building annual | 10-15 business days | CSV, XML |
Billing Data Access
GWP provides online billing access through the MyGWP portal (upgraded July 2025), where customers view current and historical statements, download PDF bills, and manage accounts.
What Data Is on Your Glendale Water & Power Bill
- Current and past billing statements (PDF)
- Historical billing data
- Bill analysis tools
- Payment history
- Service address and account status
How to Download Glendale Water & Power Bills (Business & Commercial)
- 01Log in to MyGWP at https://mygwp.glendaleca.gov/
- 02Open Pay & View Bills and select the commercial account
- 03Download PDF statements and review history
- 04For interval/usage analytics, also enroll in the Opower Business Portal
- 05Contact GWPCommercial@Glendaleca.gov for commercial support
How to Download Glendale Water & Power Bills (Residential)
- 01Go to https://mygwp.glendaleca.gov/
- 02Create an account using account number (format 00000000-00) and service zip
- 03Log in
- 04Open Pay & View Bills
- 05Download bills in PDF
Want to understand the charges on your bill?
See the Glendale Water & Power Rate Schedules & Tariff Guide →Interval Data & Smart Meters
GWP has deployed AMI digital electricity meters. Business customers access interval data and analytics through the Opower Business Customer Engagement Portal, including hourly and daily usage, demand heatmaps, and Green Button export.
How to Download Glendale Water & Power Interval Data via Green Button
- 01Create or log in to the Opower Business Portal at https://gwp.opower.com/
- 02Enter GWP Customer ID (no leading zeros) and business name
- 03Open the Data Browser or Green Button section
- 04Choose billing data and/or AMI interval data
- 05Select CSV or XML and download
Interval data is essential for rate comparison and TOU analysis.
See which Glendale Water & Power rate schedule is best for your usage pattern →Third-Party API Access
GWP has no public developer API or automated third-party authorization portal. Third-party access is managed through formal channels: the AB 802 whole-building benchmarking program (for covered multi-tenant commercial buildings) and manual customer energy data release forms. Consultants and energy managers obtain data via written authorization and the UsageRequest process.
How to Register as a Glendale Water & Power API Vendor
- 01Obtain written authorization or Power of Attorney from the building owner/customer
- 02Complete the AB 802 Data Request Form for whole-building data
- 03Collect signed Customer Energy Data Release Forms for tenant-specific meter data
- 04Email the package to UsageRequest@glendaleca.gov
- 05Upload received CSV/XML to ENERGY STAR Portfolio Manager
EDI (Electronic Data Interchange)
How to Enroll in Glendale Water & Power EDI
- 01Contact GWPCommercial@Glendaleca.gov
- 02Describe required transactions
- 03Note that no published EDI trading-partner program exists
Sources
Rate Schedules & Tariff Analysis
GWP commercial bills are driven by seasonal energy charges and, for demand-metered classes (LD-2 and PC-1), a per-kW-per-day demand charge based on the maximum kW over the trailing 12 months. Because demand is keyed to a rolling 12-month peak, a single high-demand month elevates the demand charge for a full year. High-season (Jul-Oct) energy and demand rates are materially higher than low season, making summer peak management the highest-value lever. TOU schedules concentrate cost in afternoon/evening peak windows.
Glendale Water & Power Rate Schedule List
| Schedule | Applicability |
|---|---|
| LD-2 Medium Business | 5,000+ kWh/month or 20+ kW; energy + per-kW/day demand based on 12-month peak. |
| PC-1 Large Business | Generally above 150 kW; energy + demand + reactive; TOU required above 500 kW. |
Glendale Water & Power Rate Features & TOU Details
- Seasonal pricing: High Season Jul-Oct, Low Season Nov-Jun
- Demand charge based on trailing 12-month maximum kW (per kW per day)
- L-2 has no demand charge; LD-2 and PC-1 do
- Reactive power (kVAR) charges apply on PC-1
- TOU options available across all classes; required above 500 kW (PC-1-B)
For a deeper analysis including cost optimization strategies and historical rate trends:
Read the full Glendale Water & Power Rate Optimization Guide →Other Data Access Programs
AB 802 Building Energy Use Benchmarking
California-mandated benchmarking and public disclosure program for covered buildings, enabling building owners and authorized agents to request whole-building aggregated energy data for ENERGY STAR Portfolio Manager.
- 01Confirm the building is a covered building under CEC rules
- 02Complete the Data Request Form with building addresses and meters
- 03Provide proof of ownership or authorization
- 04For tenant-specific data, collect signed Customer Energy Data Release Forms
- 05Email to UsageRequest@glendaleca.gov; receive data in 10-15 business days
WaterInsight (Water Usage)
VertexOne-powered portal for near-real-time water usage monitoring, leak alerts, and conservation tips for residential and commercial water customers.
- 01Go to https://glendale.watersmart.com/
- 02Use Account Lookup with account number and zip
- 03Create login credentials
- 04View daily/hourly water usage and alerts
Limitations & Considerations
- ⚠No public developer API for customer data
- ⚠No Green Button Connect My Data automated authorization
- ⚠No documented EDI trading-partner program
- ⚠True 15-minute interval data not generally exposed (hourly/daily via Opower)
- ⚠15-minute data currently unavailable for residential PV customers
- ⚠Third-party access requires manual authorization forms or AB 802 process
Glendale Water & Power Data Access FAQ
How does a business customer access interval data from GWP?▾
Enroll in the Opower Business Customer Engagement Portal at gwp.opower.com using your GWP Customer ID (no leading zeros) and business name. Opower provides hourly and daily usage, a demand heatmap (kW), bill comparisons, and a Green Button Download My Data feature to export billing and AMI interval data as CSV or XML.
Does GWP provide a third-party API or automated Share My Data?▾
No. GWP has no public developer API and Opower does not expose Green Button Connect My Data. Third-party access is handled through the AB 802 benchmarking program for covered buildings or manual customer energy data release forms with written authorization, processed via UsageRequest@glendaleca.gov.
Which commercial rate schedule applies to my business?▾
Small Business (L-2) applies below 5,000 kWh/month and under 20 kW demand (no demand charge). Medium Business (LD-2) applies at or above 5,000 kWh/month or 20 kW. Large Business (PC-1) is generally best above 150 kW, with TOU (PC-1-B) required above 500 kW. GWP Business Services can run a rate evaluation.
How are GWP demand charges structured?▾
Demand charges apply only to commercial accounts and are billed on a per-kW-per-day basis using the maximum kW reading over the trailing 12 months. For example, LD-2-A demand is $1.10/kW/day in the high season (July-October) and $0.77/kW/day in the low season (November-June); PC-1-A is $1.35 and $1.02/kW/day respectively.
Can a Glendale business choose a competitive electricity supplier?▾
No. GWP is a city-owned municipal utility, so there is no retail choice and Community Choice Aggregation does not apply. All commercial and industrial customers buy electricity from GWP at City Council-approved rates.
Do GWP commercial rates change seasonally?▾
Yes. GWP uses a High Season (July-October) and Low Season (November-June) for both energy and demand charges, with TOU options that add peak and base period pricing. High-season energy and demand rates are notably higher, so summer load management has outsized bill impact.
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