The verdict in three sentences
A B2B website for a commercial solar installer in Cape Town costs USD 2,600 to 6,100 in 2026 (about 1.5 to 3.5 million FCFA), delivered in 6 weeks. With average contracts of USD 44,000 to 140,000 and a gross margin around 20%, one project signed through the site repays the investment several times. What makes the difference is a sizing and savings calculator and case studies with kWp figures, because a plant manager or NGO logistics lead buys a return on investment, not panels.
What the site costs, item by item
Load shedding and diesel prices have turned solar into a finance decision for businesses. Buyers now compare offers online before ever meeting a salesperson. Here is a typical project breakdown.
| Item | USD 2,600 version | USD 6,100 version | Why it matters |
|---|---|---|---|
| Scoping, mockups, visual identity | USD 520 | USD 960 | Clear B2B positioning |
| Segment pages (industry, hospitality, NGOs, healthcare, agri) | 3 pages | 6 pages | Each target has its own arguments |
| Sizing and savings calculator | Simple (bill, kWp) | Advanced (diesel, batteries, payback) | Generates qualified enquiries |
| kWp case studies | 4 sheets | 10 sheets with photos and yield | Proof of capacity |
| Site assessment request form | Basic | Qualified + WhatsApp hand-off | Reply within 24 h |
| Second language for funders and NGOs | Not included | Included | International tenders |
| Fast hosting and local SEO | 1 year included | 1 year + 3 months of SEO follow-up | Performs on mobile data |
Maintenance then costs USD 70 to 160 a month depending on update volume and SEO follow-up.
Acquisition cost by channel
The site must be compared with other ways of finding clients. The 2026 orders of magnitude below apply to an installer closing 10 to 15 contracts a year.
| Channel | Estimated annual spend | Contracts signed per year | Acquisition cost per contract |
|---|---|---|---|
| Field salesperson (salary + travel) | USD 9,800 | 4 | USD 2,450 |
| Trade shows (stand, materials) | USD 3,500 | 3 | USD 1,170 |
| Referral commission (2% of USD 70,000) | USD 4,200 | 3 | USD 1,400 |
| Facebook and LinkedIn ads | USD 4,200 | 2 | USD 2,100 |
| NGO tender responses | USD 3,150 | 3 | USD 1,050 |
| Website + calculator + content (site amortised over 3 years) | USD 4,900 | 4 | USD 1,225 |
The website sits among the cheapest channels, and it strengthens the others: the salesperson shares the calculator link, the NGO checks case studies before shortlisting the company.
The calculator, at the heart of it
A good calculator asks 4 things: monthly electricity bill, generator diesel consumption, operating hours, available roof area. It returns a recommended size in kWp, an indicative budget and a payback period, often 3 to 5 years for a plant running on diesel. To stay credible it shows a range rather than a single figure, and points to a free site assessment.
Mini case study
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Thabo, managing director of an 18-person solar installation firm in Cape Town, invests USD 4,900 in a site delivered in 6 weeks, with an advanced calculator and 8 kWp case studies. In 10 months the calculator is used 340 times and produces 22 assessment requests. Three contracts are signed: a hotel (USD 56,000), a food processing plant (USD 102,000) and an NGO (USD 47,000), i.e. USD 205,000 of revenue. At 20% gross margin that is USD 41,000, more than six times the cost of the site and its maintenance (about USD 6,000 over the period).
FAQ
How much does a solar company website cost in Cape Town in 2026?
Between USD 2,600 and 6,100 depending on the calculator, number of case studies and second language. Maintenance adds USD 70 to 160 a month.
How long until the site is live?
Allow 6 weeks, 2 of them for the calculator and its technical validation. Timing depends mostly on gathering photos and yield data for case studies.
Could the calculator show wrong prices?
It displays a range (for example USD 32,000 to 42,000 for 40 kWp) and points to a site assessment. Unit prices are updated by the company in the site admin.
Does the site work on a slow connection?
Yes, it is built to load in under 3 seconds on 3G with compressed images. That matters for prospects browsing on a phone from a site visit.
Do we need a second language?
It helps if you bid for NGO or international funder tenders across the region. It costs an extra USD 520 to 1,050 depending on page count.
Let's scope your project. Tell us your target segments, your kWp references and the calculator you need: we will price a site between USD 2,600 and 6,100, deliverable in 6 weeks. 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.
