Kenya’s installed solar capacity reached 514.1 MW by June 2025, according to EPRA, and captive commercial and industrial systems now make up 300.5 MW of that total. The C&I segment grew 13.4% in a single year. Every one of those systems started with a drawing.
For Kenyan solar professionals, the question is no longer whether to produce technical documentation. It is whether to hire a solar drafting service, buy solar design software, or combine both. This guide answers that with real numbers, Kenyan regulatory context, and a decision framework built on 10+ years of EPC experience across African and global markets.
In this guide, you will learn:
- What solar drafting services in Kenya actually deliver
- Which rules (Energy Act 2019, EPRA licensing, KPLC grid code, KEBS standards) shape every drawing
- What typical deliverables look like and what they cost in 2026
- How net metering caps change the drafting brief
- When manual drafting beats software, and when software wins
- How to choose a provider without overpaying for scope you do not need
Quick Answer
Solar drafting services in Kenya are technical design providers that create single-line diagrams (SLDs), layout plans, and KPLC interconnection documents for solar PV systems. They must work within the Energy Act 2019, EPRA licensing rules, and KEBS equipment standards. Costs range from KES 5,000-20,000 per project for basic residential drafting to KES 40,000-200,000 for full engineering packages with structural calculations and KPLC submissions. The market is shifting: automated solar design software now handles most residential and commercial drafting in under 45 minutes, while manual services remain essential for projects above 1 MW.
What Are Solar Drafting Services in Kenya?
Solar drafting services in Kenya are technical providers, usually staffed by engineers registered with the Engineers Board of Kenya (EBK), who produce the drawings and documentation needed to permit, finance, and connect a solar PV system to the Kenya Power grid or to operate it as a captive plant.
These services sit between the sales conversation and the physical installation. A homeowner or business agrees to a solar project. The installer or EPC then needs a plan set that proves the system is safe, compliant, and economically sound. That plan set is what drafting services produce.
Who Provides Solar Drafting in Kenya
The Kenyan market has four categories of drafting providers:
- Independent engineering consultancies — Small firms of 2-5 engineers who serve multiple installers on a per-project basis. Common in Nairobi, Mombasa, and Kisumu.
- EPC in-house design teams — Larger EPCs employ full-time drafters who handle everything from residential rooftops to multi-megawatt captive plants.
- Freelance drafters — Individual engineers offering low-cost drafting. Quality control is the buyer’s responsibility, and EBK registration should always be verified.
- Software-enabled design services — Platforms like SurgePV that combine automated drafting with human review for complex projects. This hybrid model is growing fastest in 2026.
What Makes Kenyan Solar Drafting Different
Kenyan solar drafting is not generic CAD work. Three factors make it distinct.
EPRA licensing is mandatory across the chain. Anyone who designs, installs, imports, or sells solar PV in Kenya must hold an EPRA Solar PV Licence, and the design engineer must be EBK-registered. A drafter who cannot show valid licensing exposes the installer to enforcement risk.
KPLC interconnection is the gatekeeper for grid export. The Energy (Net Metering) Regulations 2024 cap domestic systems at 4 kW single-phase and 10 kW three-phase, and commercial systems at 1 MW. Every grid-tied SLD must match these limits and show Kenya Power’s bi-directional metering and protection requirements.
Net metering economics changed the design brief. Net metering credits in Kenya expire at the end of Kenya Power’s financial year and do not roll over. Commercial grid power costs KES 22-25 per kWh, while exported energy earns only retail-tariff credit that may be forfeited. This means most C&I systems are designed as captive plants optimized for daytime self-consumption, not for maximum export. Drafters who still size systems for peak output are using outdated logic.
Why Solar Drafting Matters in Kenya’s 2026 Market
Kenya’s solar market is at a transition point. Captive C&I solar reached 300.5 MW by June 2025 and is now the fastest-growing segment of the power system, according to EPRA. That growth is driven by rising commercial tariffs and an industrial base that Kenya Power’s bulk supply has not kept pace with. Faster project execution starts with faster design.
The Bottleneck Is Not Installation
Kenyan installers can mount a residential rooftop in 1-2 days. The bottleneck is paperwork. KPLC interconnection approval for net metering has a 60-day statutory window. County permits and NEMA environmental assessments for commercial projects add more weeks. Every delay in drafting delays everything downstream.
A drafting service that turns around a residential plan set in 24 hours instead of 72 hours can compress the total project timeline. At 30 projects per month, that is several extra projects completed without adding installation crews.
The C&I Segment Is Driving Demand
Captive C&I solar added 71.3 MW in the year to June 2025. These projects are more complex than residential. They often involve:
- Multiple roof planes with different tilts and orientations
- Structural calculations for warehouse and factory roofs with non-standard load capacity
- Battery storage to extend self-consumption past daylight hours
- Diesel-hybrid integration on sites with unreliable grid supply
- Yield and payback reports for financing or internal capital approval
Each requirement adds deliverables. A simple layout plan is no longer enough. C&I installers need drafting partners who can produce full engineering packages, or they can use a solar proposal software platform that combines technical drawings with financial modeling.
Utility-Scale and PPA Projects Need Specialist Drafters
Utility-scale solar reached 210.3 MW by June 2025, and the Open Access Regulations 2026 now allow licensed generators to sell directly to large consumers for the first time. These projects require:
- Full civil and geotechnical drawings
- Medium-voltage interconnection design with KPLC protection coordination
- NEMA environmental impact assessments
- Bankable P50/P90 simulations
- EPRA generation licence documentation for systems above 1 MW
No single software platform handles all of this. Utility-scale developers in Kenya typically use a hybrid model: software for preliminary layout and yield, specialist drafting firms for civil and electrical engineering, and external consultants for grid studies. For large commercial solar projects, the same principle applies.
Kenyan Regulations and Standards for Solar Drafting
Kenyan solar drafting does not happen in a regulatory vacuum. One act, one regulator, and several standards govern every drawing.
The Energy Act 2019 and EPRA
The Energy Act 2019 is the legal foundation, enforced by the Energy and Petroleum Regulatory Authority (EPRA), which replaced the Energy Regulatory Commission. EPRA licenses solar manufacturers, importers, vendors, technicians, and installers. It also gazettes net metering rules and oversees interconnection standards.
For drafting, this means every deliverable must:
- Reference EPRA-licensed contractors and EBK-registered engineers
- Specify KEBS-certified equipment
- Follow the connection rules set under the Energy (Net Metering) Regulations 2024 for grid-tied systems
KPLC Interconnection Requirements
Kenya Power reviews the single-line diagram first for any grid-connected system. The SLD must show:
| Requirement | What the Drafter Must Show |
|---|---|
| Point of connection | Where the system ties to the KPLC network |
| Bi-directional meter | Net metering metering arrangement |
| Disconnects | Main AC and DC isolation points |
| Protection schemes | Overcurrent, overvoltage, and ground fault protection |
| Anti-islanding | Measures to prevent back-feeding during outages |
| System size limits | 4 kW single-phase / 10 kW three-phase domestic, 1 MW commercial |
| Grounding | Earthing and bonding arrangement |
A missing protection symbol or a system size that exceeds the net metering cap is enough to trigger a rejection. A rejected application can cost weeks against the 60-day approval window.
KEBS Equipment Standards
The Kenya Bureau of Standards (KEBS) certifies solar equipment. Drafting deliverables must specify modules and components that carry KEBS approval under standards such as KS IEC 61215 (module design qualification) and KS IEC 61730 (module safety). An equipment schedule that lists uncertified hardware creates a compliance and warranty risk.
NEMA Environmental Requirements
The National Environment Management Authority (NEMA) requires environmental assessments for commercial and utility-scale projects. Larger ground-mount systems need a full Environmental Impact Assessment. Drafting packages for these projects must align the site layout with the assessment findings.
County Government Approvals
County governments handle building approvals and some land-use permits. Rooftop structural drawings often need to satisfy county building requirements, especially for commercial premises. A drafter who produces only the electrical SLD but ignores county building submissions leaves a gap in the approval chain.
Typical Deliverables from Kenyan Solar Drafting Services
When you hire a solar drafting service in Kenya, the scope varies by project size and complexity. Here is what to expect at each tier.
Tier 1: Basic Residential (1-10 kW)
| Deliverable | Description | Typical Format |
|---|---|---|
| Site layout plan | Module placement on roof | PDF, DWG |
| Single-line diagram (SLD) | Electrical schematic with protection | PDF, DWG |
| Stringing configuration | Module-to-inverter string mapping | PDF, Excel |
| Equipment schedule | KEBS-certified module, inverter, BOS specs | PDF, Excel |
| KPLC net metering docs | Interconnection application for grid-tied systems | KPLC format |
Cost: KES 5,000-20,000 per project Turnaround: 24-72 hours
Tier 2: Commercial and Industrial (20 kW - 1 MW)
| Deliverable | Description | Typical Format |
|---|---|---|
| All Tier 1 deliverables | Plus expanded scope | — |
| Structural calculations | Roof load analysis and mounting verification | PDF with engineer stamp |
| Shading analysis | 3D obstruction modeling and yield impact | PDF report |
| Yield and payback report | Production forecast and ROI | PDF, Excel |
| Battery and hybrid design | Storage sizing and diesel changeover logic | PDF, DWG |
| County and NEMA docs | Building approval and environmental compliance |
Cost: KES 30,000-120,000 per project Turnaround: 7-14 business days
Tier 3: Utility-Scale (Above 1 MW)
| Deliverable | Description | Typical Format |
|---|---|---|
| All Tier 2 deliverables | Plus expanded scope | — |
| Civil and geotechnical drawings | Foundation design, grading, drainage | PDF, DWG |
| MV interconnection design | Transformer, switchgear, KPLC protection coordination | PDF, DWG |
| EPRA generation licence docs | Licensing application package | |
| Environmental impact assessment | Full NEMA EIA | PDF per NEMA requirements |
| Bankable report | P50/P90 with 20-year degradation and O&M | PDF, Excel model |
Cost: KES 150,000-1,000,000+ per project Turnaround: 3-6 weeks
The SLD Is the Critical Deliverable
The single-line diagram is the document Kenya Power reviews first. It must show the point of connection, the bi-directional meter, main AC and DC disconnects, inverter placement and specifications, protection device ratings, grounding points, and the metering arrangement. Experienced Kenyan drafters know KPLC’s common rejection reasons and design the SLD to clear them on the first pass.
Solar Drafting Cost in Kenya: 2026 Pricing Guide
Pricing depends on project size, complexity, and the engineer’s qualifications. Here are the 2026 market rates.
Per-Project Pricing
| Project Type | Basic Drafting | Full Engineering | Premium (Bankable) |
|---|---|---|---|
| Residential 1-10 kW | KES 5,000-15,000 | KES 15,000-30,000 | KES 30,000-50,000 |
| Residential 10-20 kW | KES 10,000-20,000 | KES 25,000-45,000 | KES 45,000-70,000 |
| C&I 20-100 kW | KES 20,000-50,000 | KES 50,000-90,000 | KES 90,000-150,000 |
| C&I 100 kW - 1 MW | KES 50,000-120,000 | KES 120,000-250,000 | KES 250,000-450,000 |
| Utility >1 MW | KES 150,000-300,000 | KES 300,000-600,000 | KES 600,000-1,000,000+ |
Monthly Retainer Pricing
Installers with consistent volume often negotiate monthly retainers:
| Monthly Volume | Retainer Range | Effective Per-Project Cost |
|---|---|---|
| 5-10 projects | KES 50,000-120,000 | KES 5,000-12,000 |
| 10-20 projects | KES 100,000-250,000 | KES 5,000-12,500 |
| 20-30 projects | KES 200,000-400,000 | KES 7,000-13,000 |
The per-project cost under a retainer can be higher than software-based drafting because retainers include revision rounds, rush requests, and KPLC resubmissions.
Software Subscription Comparison
| Software | Annual Cost (USD) | Projects/Year | Cost Per Project |
|---|---|---|---|
| SurgePV | $600-1,500 | 50-200 | $3-30 |
| PVsyst | $500-700 | 50-100 | $5-14 |
| Aurora Solar | $5,000-9,000 | 100-300 | $17-90 |
At 50 projects per year, software costs a few dollars per project. Manual drafting costs KES 5,000-20,000 (roughly $40-150) per project. The economic case for software is clear at volume. The case for manual drafting is strongest at low volume or high complexity.
Pro Tip
Do not compare software and manual drafting on price alone. A cheap manual draft that KPLC rejects costs you weeks of delay against the 60-day approval window. A software draft that is compliant from the start saves you both time and resubmission effort. The real cost is total project cycle time, not the drafting invoice.
Manual Drafting vs Solar Design Software in Kenya
The choice between manual drafting services and solar design software is not binary. Most successful Kenyan installers use both. The question is where to draw the line.
When Manual Drafting Wins
Manual drafting services are the better choice when:
- The project is above 1 MW. Software handles layout and yield well, but civil engineering, MV interconnection, and KPLC protection coordination need specialist drafters.
- Custom structural work is required. An old industrial roof needing reinforcement and non-standard mounting needs a structural engineer, not software.
- MV interconnection is involved. Protection coordination with KPLC requires site-specific knowledge that software does not automate.
- You do fewer than 5 projects per month. At low volume, a per-project fee can be cheaper than an annual subscription.
- Bankable reports for project finance are required. Lenders still prefer detailed PVsyst reports with uncertainty analysis for larger projects.
When Software Wins
Solar design software is the better choice when:
- You do 20+ residential or commercial projects per month. The time savings compound quickly. Installers switching to software typically save 60-80% of proposal preparation time.
- Speed is a competitive advantage. Same-day turnaround lets you respond to leads while they are still hot.
- You need integrated financial modeling. Captive solar economics in Kenya require self-consumption optimization and battery ROI analysis. Software does this automatically. Manual drafters usually do not.
- You want to reduce errors. Automated SLD generation reduces the protection errors that cause KPLC rejections.
The Hybrid Model
The most common approach among mid-size Kenyan installers is hybrid:
- Software for design and proposals. Layout, shading, SLD, yield, and financial modeling in one platform.
- Manual drafting for structural and MV work. Hire an EBK-registered engineer for the projects that need it.
- External consultants for grid studies. KPLC interconnection and MV impact analysis for utility-scale projects.
This hybrid model is more expensive than pure software but cheaper than pure manual drafting at volume, and it covers every project type.
How to Choose a Solar Drafting Service Provider in Kenya
Selecting a drafting provider is a procurement decision that affects every project timeline. Use this checklist.
Qualification Checklist
| Criterion | Why It Matters | How to Verify |
|---|---|---|
| EPRA Solar PV Licence | Required by law for design and installation | Ask for the licence number and check the EPRA register |
| EBK registration | Design engineers must be registered | Request the engineer’s EBK registration |
| KPLC interconnection portfolio | Rejections cost weeks of delay | Ask for 3 recent SLDs approved by Kenya Power |
| KEBS equipment knowledge | Uncertified hardware fails inspection | Confirm equipment schedules reference KEBS standards |
| Professional liability cover | Drafting errors create liability | Request proof of insurance |
| Revision policy | Rejections and client changes are normal | Confirm 2-3 revision rounds are included |
| Turnaround guarantee | Project timelines depend on drafting speed | Get written turnaround commitments |
Red Flags
- No EPRA licence or EBK registration. This is a legal requirement, not a nice-to-have.
- Fixed price for all projects. A 3 kW residential system and a 500 kW commercial roof cannot cost the same to draft properly.
- No KPLC approval examples. Any drafter working on grid-tied systems should have approved SLDs to show.
- Outdated net metering knowledge. Drafters who ignore the credit-expiry rule do not understand the 2026 market.
- No revision allowance. Every project has at least one round of changes. Per-revision charges add up fast.
Questions to Ask Before Signing
- “Can you show me a KPLC-approved SLD from the last 3 months?”
- “What is your EPRA licence number and EBK registration?”
- “What is your revision policy, and how many rounds are included?”
- “Do you handle the KPLC net metering application, or do I do that separately?”
- “What is your turnaround for a [X kW] project, and do you offer rush service?”
- “How do you optimize designs for self-consumption given the credit-expiry rule?”
Common Mistakes When Outsourcing Solar Drafting in Kenya
Kenyan installers make the same errors repeatedly when hiring drafting services. Here are the most costly ones.
Mistake 1: Treating Drafting as a Commodity
The lowest-price drafter is rarely the cheapest option. A cheap draft with a missing protection symbol costs you weeks of KPLC delay. Quality drafting is insurance, not overhead.
Mistake 2: Ignoring the Net Metering Credit-Expiry Rule
Net metering credits in Kenya expire at the end of Kenya Power’s financial year and do not roll over. Drafters who size systems for maximum export without modeling the daytime load profile design for forfeited credits, not real savings. For C&I sites, self-consumption is where the value sits.
Mistake 3: Separating Drafting from Financial Modeling
A layout plan without a financial model is half a deliverable. Kenyan customers need to see payback against KES 22-25 per kWh grid tariffs and battery ROI before they sign. Drafting services that produce only technical drawings force you to build the financial case separately. Software platforms that integrate both save hours per project. For a related view of the economics, see our solar panel ROI breakdown of how payback math works in practice.
Mistake 4: Not Verifying EPRA and EBK Credentials
Working with an unlicensed drafter exposes the installer to enforcement risk and can invalidate KPLC and county approvals. Always confirm the EPRA Solar PV Licence and EBK registration before any project starts.
Mistake 5: Skipping Structural Calculations on Commercial Roofs
County building requirements and basic safety demand structural verification for rooftop installations. A drafting service that produces only electrical drawings leaves you exposed if the roof cannot support the load. Always confirm structural calculations are included for C&I projects.
Pro Tip
The best drafting relationship is a partnership, not a transaction. Share your typical project types, target counties, and customer profile with your drafter at the start. A drafter who understands your workflow produces better drawings faster than one who treats every project as a blank slate.
When to Use SurgePV for Kenyan Solar Drafting
For Kenyan installers and EPCs, the choice between manual drafting and software is increasingly tilted toward automation. Solar design software like SurgePV handles the standard residential and commercial rooftops that make up most of the pipeline, leaving manual drafters for the projects that are complex, custom, or utility-scale. If your workflow is proposal-heavy, pairing design with solar proposal software can cut pre-sale preparation time by 60-80%.
SurgePV integrates layout, shading, electrical design, yield simulation, and financial modeling in one workflow. It generates single-line diagrams automatically, models self-consumption and battery payback, and produces client-facing proposals with Kenyan tariff inputs. The shadow analysis tools size production accurately for sites with nearby buildings or trees, and the generation and financial tool builds the payback case customers want to see.
For installers doing 20+ projects per month, the time savings are substantial. A project that takes 3-4 hours in AutoCAD takes under 45 minutes in SurgePV. That difference compounds across a monthly pipeline into dozens of recovered hours.
Design Kenyan Solar Projects Faster
See how SurgePV automates single-line diagrams, self-consumption modeling, and client proposals in a single platform.
Book a DemoNo commitment required · 20 minutes · Live project walkthrough
Conclusion
Solar drafting services in Kenya are moving from a manual, per-project cost center toward a hybrid capability that combines software automation with specialist engineering. The 2026 market rewards speed, EPRA and KPLC compliance, and self-consumption-focused financial modeling that most standalone drafting services do not provide.
Here are three actions to take this week:
- Audit your current drafting cost per project. Include revision rounds, KPLC resubmissions, and delay costs. Compare that total to a software subscription at your volume.
- Verify your drafter’s credentials. Confirm the EPRA Solar PV Licence, EBK registration, and three recent KPLC-approved SLDs. If they cannot produce them, find a provider who can. For the full regulatory picture, read our Kenya solar regulations guide.
- Test a hybrid workflow. Run your next five residential projects through solar design software and your next commercial project through a manual drafter. Measure total cycle time and cost for each.
Kenya’s captive C&I solar segment is growing 13% a year. The installers who win are the ones that design faster, comply flawlessly, and close more deals. Your drafting strategy is a competitive weapon. Use it.
Frequently Asked Questions
What are solar drafting services in Kenya?
Solar drafting services in Kenya are technical providers that create single-line diagrams (SLDs), layout plans, KPLC interconnection documents, and EPRA-compliant drawings for solar PV systems. They are usually staffed by engineers registered with the Engineers Board of Kenya (EBK) who understand the Energy Act 2019, KPLC grid code, and KEBS equipment standards.
How much do solar drafting services cost in Kenya?
Basic residential drafting costs KES 5,000-20,000 per project. Full engineering documentation with structural calculations, SLDs, and KPLC interconnection packages runs KES 40,000-200,000. Monthly retainers for installers with 20+ projects range from KES 80,000-400,000.
Do I need an EPRA licence to do solar drafting in Kenya?
Anyone who designs, installs, imports, or sells solar PV systems in Kenya must hold an EPRA Solar PV Licence. Individual technicians and design engineers must register with the Engineers Board of Kenya (EBK). Projects above 1 MW also need an EPRA generation licence. Drafting deliverables must reference KEBS-certified equipment under KS IEC 61215 and KS IEC 61730.
Can solar design software replace manual drafting in Kenya?
For residential and commercial projects under 1 MW, yes. Software like SurgePV generates SLDs and layout plans in under 45 minutes at a few dollars per project. Manual drafting remains essential for utility-scale plants, custom civil engineering, and medium-voltage interconnection studies that need KPLC protection coordination.
What deliverables should I expect from a Kenyan solar drafting service?
Standard deliverables include a site layout plan, single-line diagram with protection schemes, stringing configuration, equipment schedule referencing KEBS-certified components, structural calculations for rooftop systems, KPLC net metering or interconnection documents, and a yield report for systems above 100 kW.
How long does solar drafting take in Kenya?
A basic residential plan set takes 24-72 hours. Commercial projects with structural calculations require 7-14 business days. Utility-scale projects with KPLC interconnection studies and bankable reports take 3-6 weeks. Software-generated drafts are same-day.
What does KPLC require in a solar interconnection diagram?
Kenya Power requires a single-line diagram showing the point of connection, bi-directional meter, main AC and DC disconnects, inverter specifications, protection device ratings, anti-islanding measures, and grounding arrangement. For net metering, the diagram must match the 4 kW single-phase or 10 kW three-phase domestic caps, or the 1 MW commercial cap.
What is the difference between solar drafting and solar design software?
Solar drafting services produce manual technical drawings, usually in AutoCAD, for a per-project fee. Solar design software automates layout, shading, electrical design, and financial modeling through a subscription. In Kenya, the key difference is speed and integrated financial modeling: software generates the SLD, yield, and payback in one workflow, while manual drafters charge separately for each revision.
