Tanzania’s electricity sector has transformed dramatically. Total installed capacity surged from 2,138 MW in March 2024 to over 4,000 MW by April 2025 — an 86.6% increase driven largely by the Julius Nyerere Hydropower Plant. Yet solar remains a tiny fraction of the mix at roughly 0.1% of grid-connected capacity. The Kishapu 50 MW solar plant, connected in March 2026, is the country’s first utility-scale solar installation. For solar developers, this means the market is wide open — but the compliance pathway is specific and must be followed precisely.
This guide covers the full Tanzania solar compliance stack: EWURA’s SPP and mini-grid regulations, TANESCO grid connection standards, the net metering framework, rural electrification through REA, municipal building permits, and import duty exemptions on solar equipment.
The SPPA Is Non-Negotiable
Developers cannot amend the Standardized Power Purchase Agreement. Only EWURA-issued addenda are permitted. Attempting to negotiate terms with TANESCO will delay the project. Sign the SPPA as issued and focus on technical and financial compliance.
Tanzania Solar Market Overview 2026
Tanzania’s solar sector is at an inflection point. The country has excellent solar resource, strong policy support, and a regulatory framework that is becoming clearer — but grid-tied solar deployment has lagged behind off-grid and mini-grid solutions.
| Metric | Value | Source |
|---|---|---|
| Total grid-connected capacity (April 2025) | 4,031.71 MW | EWURA |
| Solar PV share of grid capacity | ~0.1% | EWURA |
| Kishapu solar plant (Phase 1) | 50 MW | Connected March 2026 |
| Kishapu solar plant (Phase 2, planned) | 100 MW | Contractor selection |
| Mini-grid installed capacity | 157.7 MW | EWURA |
| Licensed mini-grids | 100+ | EWURA |
| Total electricity customers (September 2025) | 5,715,726 | EWURA |
| National connectivity rate | ~50% | World Bank |
| Solar irradiance (national range) | 4–7 PSH/day | World Bank ESMAP |
| TANESCO residential tariff | TZS 100–350/kWh | EWURA 2016 Order |
| TANESCO commercial tariff (T1) | TZS 292/kWh | EWURA 2016 Order |
| TANESCO industrial tariff (T2) | TZS 195/kWh | EWURA 2016 Order |
The government’s Power System Master Plan 2024 Update targets 1,129 MW of solar by 2028 and 463 MW of solar PV by 2030 under the National Energy Compact. The Kishapu project is the first step.
EWURA SPP Framework
The Small Power Projects (SPP) framework is the primary regulatory pathway for grid-connected renewable energy projects in Tanzania. It is governed by the Electricity (Development of Small Power Projects) Rules 2020 (Government Notice No. 491 of 2020), as amended in 2025.
Project Categories
| Category | Capacity | Regulatory Treatment |
|---|---|---|
| Very Small Power Producer (VSPP) | up to 100 kW | Exempt from licensing; letter of support from Ministry of Energy |
| Small Power Producer (SPP) | 100 kW – 10 MW | Registration or licence required; Standardized PPA with TANESCO |
| Above 10 MW | Over 10 MW | Falls outside SPP framework; full IPP licence required |
Key 2025 Amendment Changes
The 2025 amendments introduced several material changes:
| Aspect | Before 2025 | After 2025 Amendments |
|---|---|---|
| Project size cap | 100 kW – 10 MW (with exceptions over 10 MW) | Strictly 100 kW – 10 MW; no exceptions |
| Hybrid fossil fuel limit | No explicit cap | Fossil fuel generation capped at 25% of installed capacity |
| Solar tariffs | Technology-specific feed-in tariffs | Competitive bidding for solar and wind |
| SPPA amendments | Prescribed in Third Schedule | Must sign without substantive amendments |
| Performance Agreement | Not required | Mandatory for all SPP developers |
| Strategic areas | DNOs identified areas | DNOs must publish list annually in July |
| REA endorsement | Not required for mini-grids | Required for mini-grid developers before EWURA submission |
Solar Tariff Bands (Historical Reference)
While solar tariffs are now set through competitive bidding, the previous standardized tariff bands provide a useful reference:
| Capacity Band | Previous Tariff |
|---|---|
| 0.1–0.5 MW | 10.54 US cents/kWh |
| 0.51–1 MW | 9.84 US cents/kWh |
| 1.01–5 MW | 9.24 US cents/kWh |
| 5.01–10 MW | 8.34 US cents/kWh |
Payments are made in US dollars or another hard currency, which provides currency stability for developers.
TANESCO Grid Connection Standards
TANESCO operates the national grid and manages all grid connection applications for SPP projects. The connection process involves several stages.
Grid Connection Process
| Stage | Activity | Timeline |
|---|---|---|
| 1 | Preliminary enquiry to TANESCO regional office | 2–4 weeks |
| 2 | Grid capacity assessment and feasibility | 4–8 weeks |
| 3 | Technical and commercial benefit determination | 4–6 weeks |
| 4 | SPPA execution | 2–4 weeks |
| 5 | Grid connection study and design | 8–12 weeks |
| 6 | Construction and commissioning | Project-dependent |
TANESCO’s Power System Master Plan 2024 Update includes net metering projections showing a gradual load reduction from distributed solar: 3.76 MW in 2024, rising to 22.1 MW by 2030.
Grid Reliability Context
TANESCO’s system average interruption duration index (SAIDI) was 1,692.73 minutes (approximately 28.2 hours) per customer per year in FY 2024/25 — above the target of 1,536 minutes. The system average interruption frequency index (SAIFI) was 17.69 interruptions per year, within the target of under 26. This reliability context makes solar plus backup storage attractive for C&I customers.
Net Metering Framework
Tanzania’s Electricity (Net-Metering) Rules 2018 remain the governing regulation for net metering. However, the framework is limited and is scheduled for revision.
Current Net Metering Parameters
| Parameter | Value |
|---|---|
| Governing rules | Electricity (Net-Metering) Rules 2018 |
| Capacity cap | Up to 5% of previous year’s peak load |
| Allocation method | First-in, first-out |
| Revision deadline | By June 2027 (National Energy Compact commitment) |
The National Energy Compact commits EWURA to revise, adopt, and enforce updated net metering rules by June 2027. Zanzibar Utilities Regulatory Authority (ZURA) is also developing a net metering regulation for Zanzibar by mid-2026.
For most residential and small commercial solar developers, the SPPA framework or off-grid/mini-grid pathways are more practical than net metering under the current 2018 rules.
Rural Electrification and Mini-Grids
Tanzania’s rural electrification strategy relies heavily on mini-grids and off-grid solar. The Rural Energy Agency (REA) manages the Rural Energy Fund and provides technical and financial support to developers.
Mini-Grid Regulatory Framework
| Threshold | Requirement |
|---|---|
| up to 15 kW, 30+ customers | Registration with EWURA |
| under 100 kW | Exempt from licensing; registration required |
| 100 kW – 1 MW | Registration with EWURA |
| above 1 MW | Full EWURA licence |
Main Grid Arrival Provisions
When the main grid reaches a mini-grid area, operators have three options:
- Operate as SPP: Sell electricity to the main grid under the Standardized PPA
- Operate as SPD (Small Power Distributor): Buy electricity in bulk from the grid and sell to retail customers
- Asset transfer: TANESCO can take over distribution assets with compensation if standards are met
Compensation is limited to cases where the main grid arrives within 2 to 15 years of the commercial operation date. The amount is based on REA’s average capital cost for rural distribution installation minus depreciation.
Mini-Grid Statistics (2024/25)
| Metric | Value |
|---|---|
| Registered mini-grid companies | 6 |
| Consumers served (FY 2023/24) | 18,000 |
| Total mini-grid installed capacity | 3.76 MW |
| Energy delivered to rural consumers | 7,570,000 MWh |
| SPPs connected to main grid | 15 (48.56 MW total) |
Building Permits and Municipal Requirements
Solar installations in Tanzania require permits from municipal or district councils. There is no dedicated “solar permit” category — solar falls under standard building and construction permits.
Permit Requirements by Project Type
| Project Type | Permit Required | Issuing Authority |
|---|---|---|
| Rooftop solar (residential, no structural change) | May not require building permit | Confirm with local council |
| Rooftop solar (structural modification) | Building permit | Municipal/District Council |
| Ground-mounted solar | Building permit + land use | Municipal/District Council |
| C&I solar | Building permit + electrical | Municipal/District Council |
Dar es Salaam Municipal Councils
Dar es Salaam has three municipal councils that issue permits:
| Municipality | Coverage |
|---|---|
| Ilala Municipal Council | Central and eastern Dar es Salaam |
| Kinondoni Municipal Council | Northern Dar es Salaam |
| Temeke Municipal Council | Southern Dar es Salaam |
Permit fees range from TZS 100,000 for small installations to over TZS 1,000,000 for large commercial projects. Processing times vary from several weeks to several months depending on complexity.
Import Duty and VAT Exemptions
Tanzania offers significant tax incentives for solar equipment, making it one of the more favourable markets in East Africa for equipment import.
VAT Exemptions (Finance Act 2025)
| Equipment | VAT Status |
|---|---|
| Solar panels/modules | Exempt (0%) |
| Solar inverters | Exempt (0%) |
| Solar charge controllers | Exempt (0%) |
| Solar lights | Exempt (0%) |
| Vacuum tube solar collectors | Exempt (0%) |
| Solar batteries (exclusively for solar storage) | Exempt (0%) |
| General-purpose batteries | 18% VAT applies |
Import Duty
| Equipment | Import Duty |
|---|---|
| Solar panels | 0% (EAC CET) |
| Solar manufacturing machinery | 0% (EAC CET capital goods) |
| Batteries (non-solar-specific) | 25–35% |
Key Considerations
- Standard VAT rate: 18% on mainland Tanzania, 15% in Zanzibar
- VAT deferment on capital goods available until 30 June 2026
- New zero-rating provisions run from 1 July 2025 to 30 June 2028
- Proper HS code classification is critical for customs clearance
- Documentation delays can add 7 to 14 days at customs
Solar Irradiance and Resource Potential
Tanzania has excellent solar resources across the entire country.
Solar Resource by Region
| Region | Daily GHI (kWh/m²/day) | Peak Sun Hours |
|---|---|---|
| Central Tanzania (Dodoma, Singida) | 5–6+ | 5–6+ |
| Northern Tanzania (Arusha) | 5–6+ | 5–6+ |
| Iringa/Mafinga | 6.24 | 6.24 |
| Dar es Salaam (coastal) | 4–5 | 4–5 |
| Southwest | 4 | 4 |
| National average | 4–7 | 4–7 |
Key Solar Resource Facts
- 83% of Tanzania’s land area has annual average GHI above 4.5 kWh/m²/day
- 14% of the country exceeds 5.5 kWh/m²/day
- Low interannual variability makes solar output highly predictable
- Optimal tilt angles are low (~8 degrees facing north near the equator)
- 2,800 to 3,500 sunshine hours per year nationally
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C&I Solar Economics in Tanzania
Commercial and industrial solar in Tanzania is driven by high grid tariffs and unreliable supply. The economics are compelling for many businesses.
TANESCO Tariff Structure (EWURA Approved)
| Customer Category | Energy Charge | Service Charge |
|---|---|---|
| D1 (Domestic, 0–75 kWh) | TZS 100/kWh | TZS 0/month |
| D1 (Domestic, above 75 kWh) | TZS 350/kWh | TZS 0/month |
| T1 (General/Commercial) | TZS 292/kWh | TZS 0/month |
| T2 (Commercial/Industrial LV) | TZS 195/kWh | TZS 14,233/month |
| T3-MV (Medium Voltage) | TZS 157/kWh | TZS 16,769/month |
| T3-HV (High Voltage) | TZS 152/kWh | TZS 0/month |
C&I Solar Value Proposition
| Factor | Impact |
|---|---|
| Grid tariff (T1) | TZS 292/kWh (~USD 0.11/kWh) |
| Solar LCOE estimate | USD 0.05–0.08/kWh |
| Savings potential | 30–60% on electricity costs |
| Backup generator displacement | Diesel costs TZS 1,500–2,500/kWh equivalent |
| Payback period (C&I) | 4–7 years typical |
Businesses in Dar es Salaam and other urban centres face scheduled power outages of up to 8 hours during maintenance periods, with some areas experiencing 12+ hour outages. Solar plus battery storage displaces expensive diesel generator runtime and provides energy security.
Common Compliance Mistakes in Tanzania
| Mistake | Why It Happens | Correct Approach |
|---|---|---|
| Attempting to negotiate the SPPA | Developers treat it like a standard PPA | Sign the Standardized PPA as issued; only EWURA addenda are permitted |
| Selecting a site outside TANESCO strategic areas | Lack of awareness of July publication cycle | Wait for the annual July publication or engage TANESCO early |
| Importing batteries without solar-specific documentation | TRA applies standard battery duty | Ensure batteries are classified as solar-specific with proper technical documentation |
| Missing REA endorsement for mini-grids | New 2025 requirement | Obtain REA endorsement before submitting to EWURA |
| Connecting without TANESCO approval | Pressure to energise quickly | Get written interconnection approval before commissioning |
Related Tanzania Compliance Guides
- Dar es Salaam Solar Compliance Guide — TANESCO permits, Ilala and Kinondoni municipal requirements
- TANESCO Solar Grid Connection Guide — SPP rules, net metering, and EWURA standards
Frequently Asked Questions
Do I need an EWURA licence for a solar project in Tanzania?
Projects below 100 kW are exempt from EWURA licensing. Projects between 100 kW and 1 MW require registration with EWURA. Projects above 1 MW require a full EWURA generation licence. All grid-connected projects must sign a Standardized Power Purchase Agreement (SPPA) with TANESCO. Mini-grid operators must also register with EWURA and obtain tariff approval through the LOIS portal.
What is the SPP framework in Tanzania?
The Small Power Projects (SPP) framework, governed by the Electricity (Development of Small Power Projects) Rules 2020 (as amended in 2025), covers renewable energy projects from 100 kW to 10 MW. Developers must use TANESCO’s published strategic areas, sign a non-negotiable Standardized PPA, and execute a mandatory Performance Agreement with EWURA. Solar tariffs are set through competitive bidding rather than fixed feed-in tariffs.
Is net metering available for residential solar in Tanzania?
Tanzania’s Electricity (Net-Metering) Rules 2018 remain in effect but are scheduled for revision by June 2027 under the National Energy Compact. The current framework allows net metering capacity up to 5% of the previous year’s peak load, allocated on a first-in, first-out basis. Residential net metering is limited. Most solar deployment in Tanzania is off-grid, mini-grid, or utility-scale under the SPPA framework.
Are solar panels exempt from import duty and VAT in Tanzania?
Yes. Solar panels, inverters, charge controllers, and solar lights are VAT-exempt under the Finance Act 2025. Import duty on solar panels is 0% under the East African Community Common External Tariff. Solar batteries are only VAT-exempt if specifically designed for exclusive solar power storage. Standard VAT is 18% on mainland Tanzania and 15% in Zanzibar.
What solar irradiance can I expect in Tanzania?
Tanzania receives 4 to 7 peak sun hours per day, with 83% of the country’s land area receiving above 4.5 kWh per square metre per day. Central and northern regions including Dodoma, Singida, and Iringa see 5 to 6+ kWh per square metre per day. Dar es Salaam and coastal areas average 4 to 5 kWh per square metre per day. Annual global horizontal irradiance ranges from 1,800 to 2,200 kWh per square metre.
How long does EWURA licensing take for a solar SPP?
EWURA processing for complete SPP registration or licence applications averages 60 to 90 days. This assumes all required documents are submitted: business registration, technical description, financial model, environmental clearance where required, and the Standardized PPA signed with TANESCO. Incomplete applications are returned for correction, which can add 30 to 60 days.
