The verdict in three sentences
A corporate website for an energy utility in Houston requires a budget of 40,000 to 80,000 USD for the public site, and noticeably more with a customer portal connected to billing. The realistic timeline is 12 to 16 weeks, and maintenance for a site of this level runs around 1,500 to 3,000 USD per month. The top priority is a lightweight mobile experience, because customers check planned outages and rates from their phones, often during storms when networks are congested.
What an energy utility website must include
The communications department pursues three goals: cut calls to the customer service centre, make official information accessible and project a modern image to partners, regulators and investors. The scope is built by modules.
| Module (2026 estimate, Houston) | Indicative budget | Timeline |
|---|---|---|
| Corporate site, 20 to 30 pages (governance, projects, ESG, newsroom) | 40,000 to 55,000 USD | 8 to 10 weeks |
| Planned outages module (area, date, duration, alerts) | 8,000 to 15,000 USD | 2 to 3 weeks |
| Rate tables and bill estimator | 5,000 to 10,000 USD | 1 to 2 weeks |
| Service centres and payment locations map | 3,000 to 6,000 USD | 1 week |
| Customer portal (view and pay bills) | 30,000 to 70,000 USD | 4 to 6 weeks |
| Lightweight mobile version and offline mode (PWA) | 6,000 to 12,000 USD | 2 weeks |
The outages module has the biggest impact. Published by area (Midtown, Katy, Pasadena, The Woodlands), with one page per zone and SMS or email alerts, it replaces thousands of calls during each planned intervention and during hurricane season.
The customer portal: option or priority?
The portal connects to the existing billing system, often a utility CIS such as SAP IS-U or Oracle Customer Cloud Service. Its cost depends mostly on the quality of the available API.
| Portal level | Features | Indicative budget | Prerequisite |
|---|---|---|---|
| Simple view | Bill history as PDFs | 20,000 to 30,000 USD | Regular export from the billing system |
| View and pay | Card, ACH, digital wallets | 30,000 to 50,000 USD | Billing API and payment processor |
| Full self-service | Claims, meter readings, budget billing | 50,000 to 70,000 USD | Read and write API, hardened security |
| Prepaid meters | Credit purchase and history | On assessment | Integration with the prepaid system |
A phased approach limits risk: launch the public site and outages module in 12 weeks, then open the portal in simple view mode, and add payments in a second release.
Mobile performance: the targets to set
| Indicator | Typical corporate site | Target for an energy utility |
|---|---|---|
| Home page weight | 3 to 5 MB | Under 1 MB |
| Load time on a congested mobile network | 8 to 15 seconds | Under 4 seconds |
| Outages page available offline | No | Yes (PWA) |
| Images | Unoptimised JPEG | WebP or AVIF, lazy loading |
| Target availability | 99% | 99.9% with CDN |
Mini case study
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Rachel, communications director at a Houston energy utility, observes that each major planned outage generates about 2,500 calls to the customer service centre, at an estimated average cost of 6 USD per handled call. With 8 major interventions per month, that is 120,000 USD per month. If the outages module and alerts cut those calls by 30%, the saving reaches 36,000 USD per month, which covers the module budget (12,000 USD) within a month and the full site within a few months. This case is illustrative.
FAQ
How much does an energy utility corporate website cost in Houston?
Expect 40,000 to 55,000 USD for the public site, then 8,000 to 15,000 USD for the outages module. The customer portal adds 20,000 to 70,000 USD depending on its level.
What timeline for such a project?
12 to 16 weeks for the public site, the outages module and the service centre map. A portal connected to billing needs 4 to 6 additional weeks, depending on the available API.
Can the portal accept digital wallets and ACH?
Yes, through a payment processor, with fees typically between 1.5 and 3% for cards and much less for ACH. Confirmation must be linked in real time to the billing system.
How do you keep the site fast on congested networks?
By targeting a home page under 1 MB, WebP images and a PWA that caches the outages page. Load time then drops below 4 seconds.
What maintenance should be planned?
For a site with a customer portal and subscriber data, plan around 1,500 to 3,000 USD per month, covering security updates, backups and small changes. New features are quoted separately.
Let's scope your project. Tell us your priority modules and the state of your billing system: we scope the build in phases, the budget in USD and a 12 to 16 week plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
