The verdict in three sentences
A solar EPC (engineering, procurement, construction) company in Nairobi sells plants worth 80,000 to 1.3 million USD to factories, hotels and commercial sites: its website must prove engineering capability before the first meeting. A professional site with a savings simulator costs 15,000 to 30,000 USD, delivered in 7 weeks. A single 150 kWp plant signed through the site repays the project many times over.
What a plant manager and a lender are looking for
An industrial manager on Mombasa Road or in Athi River paying 40,000 to 65,000 USD of electricity a month wants three answers: how much he will save, how long payback takes, and whether the company has delivered comparable projects. A lender or development bank financing the plant wants verifiable references, certifications and an identified engineering team.
The site must combine quantified references (installed kWp, annual MWh, measured savings, tonnes of CO2 avoided), a savings simulator starting from the prospect's utility bill, a clear page for financiers, and a technical-study request flow that qualifies the lead. In Abidjan, an equivalent French-language site costs 3 to 5 million FCFA, plus 1.5 to 2.5 million FCFA for the simulator.
| Quote item | 2026 cost (USD) | Timeline | Commercial role |
|---|---|---|---|
| Design and 15 to 20 page site | 6,000 - 11,000 | 3 weeks | Serious engineering image |
| Financier and partner section | 1,000 - 2,000 | 1 week | Access to financing |
| Filterable quantified references base | 1,000 - 2,000 | 1 week | Proof of capability |
| Qualifying technical-study form | 500 - 1,000 | 3 days | Leads with real consumption |
| Sector pages (industry, hospitality, agro) | 1,000 - 2,000 | 1 week | Sector-level SEO |
| Savings simulator | 5,500 - 12,000 | 2 weeks | Meeting trigger |
| Monthly maintenance | 150 - 300 / month | ongoing | Security, updates |
The complete project lands between 15,000 and 30,000 USD depending on simulator depth and design level. 2026 order of magnitude for a custom development agency.
The savings simulator: scope and levels
The simulator turns a curious visitor into a meeting. The prospect enters monthly consumption, contracted capacity and operating hours; the tool estimates useful PV capacity, production, self-consumption rate and payback. We recommend basing it on real irradiation data for Nairobi (around 1,500 to 1,700 kWh/kWp/year depending on orientation) and the current tariff schedule.
| Simulator level | Cost (USD) | Inputs | Output |
|---|---|---|---|
| Simple calculator | 5,500 - 7,000 | Monthly bill | Estimated capacity and annual savings |
| Calculator with hourly profile | 7,000 - 9,000 | Bill + operating hours | Self-consumption and ROI |
| Simulator with battery storage | 9,000 - 12,000 | + generator and outages | Diesel savings, autonomy |
| PDF report sent to prospect | included from level 2 | Contact details | Qualified lead in CRM |
| Connection to a sizing tool | on quote | Plans, readings | Technical pre-study |
The storage level matters for hotels and factories facing outages and paying diesel for generators: it is often the deciding argument.
Mini case study
Grace runs a solar EPC company in Nairobi that has installed 4.2 MWp for factories and hotels. Her sales team sends PDF brochures, and 70% of prospects never follow up. She orders a site at 16,000 USD, an hourly-profile simulator at 8,000 USD and maintenance at 250 USD a month, a total of 27,000 USD in year one. The simulator produces 25 reports a month, leading to 4 meetings and, over the year, two signed contracts: a 150 kWp plant for a lodge in Naivasha (200,000 USD) and a 400 kWp plant for a food processing plant (520,000 USD). At a 12% net margin, these two contracts represent about 86,400 USD, more than three times the first-year investment.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
FAQ
How much does a solar EPC company website cost in Nairobi in 2026?
A professional site with quantified references and a savings simulator costs 15,000 to 30,000 USD. The simulator alone accounts for 5,500 to 12,000 USD depending on its level.
How long until launch?
Plan for 7 weeks, simulator included. This assumes your references (capacity, production, photos) are gathered by week two.
Can the simulator promise a savings figure?
No, it provides an estimate framed by displayed assumptions, with a 10 to 15% margin. The on-site technical study remains the contractual document.
Why a dedicated section for lenders?
Development banks, investment funds and manufacturer partners finance a large share of projects above 300,000 USD. A clear financier page with track record and certifications costs 1,000 to 2,000 USD.
What does maintenance cover?
Hosting, backups, security updates, adding two references a month and yearly tariff updates in the simulator, for 150 to 300 USD a month. Major evolutions are quoted separately.
Let's scope your project. Send us your references, target segments and preferred simulator level: we will price the site and the tool with a 7-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.
