Farm connections are among the most expensive in Zimbabwe, for a straightforward reason: farms are usually far from existing infrastructure, and the loads — boreholes, irrigation, cold storage, processing — are substantial.
They are also the connections where the largest savings are available, because neighbouring farms frequently need power at the same time. This guide covers the costs, the options and the process.
What drives farm connection costs
Distance from the network. Where the nearest 11kV line is kilometres away, line extension is charged per kilometre and typically dominates the quotation. Terrain, road crossings and river crossings all add cost.
Transformer requirement. Rural transformers rarely have spare capacity for a substantial new agricultural load, so a new unit is usually required.
Load size. Irrigation pumps and cold storage are significant loads, and motor starting currents can dictate supply sizing beyond what running load alone would suggest.
Wayleaves. Lines crossing neighbouring farms require permission. This adds time rather than direct cost, but delay has its own price when a season is at stake.
Sizing a farm supply properly
Farm loads are unusually variable, which makes assessment more important than on most connections.
Irrigation is seasonal and may run at full load for months and barely at all for the rest of the year. Cold storage runs continuously. Processing equipment runs in campaigns. Domestic load on the farm is comparatively small but constant.
Applying proper diversity across these frequently produces a maximum demand well below the sum of connected loads, which can bring the required transformer down a size. Given that transformers step through 25kVA, 50kVA, 100kVA, 200kVA and 315kVA ratings, crossing a boundary unnecessarily is expensive. A load assessment is worthwhile on any farm connection.
Motor starting deserves particular attention. A large irrigation pump draws substantially more current starting than running, and a supply sized only on running load will struggle. Soft starters and staged starting can reduce the supply capacity required — sometimes enough to change the transformer size.
The saving most farms miss
Line extension cost is essentially independent of how many customers the line ultimately serves. Extending an 11kV line three kilometres costs much the same whether it feeds one farm or five.
Where several farms along the same road need power, sharing the extension transforms the economics. Individually the cost is often prohibitive; divided between four or five parties it frequently becomes viable.
In fourteen years the pattern we see repeatedly is farms abandoning connection projects that would have proceeded comfortably had neighbours been approached. Very often nobody asked. Our guide to shared connections sets out how to structure this, including how to divide the cost fairly and what the written agreement should cover.
Grid connection or solar?
This is a fair question and the honest answer is that it depends on the load profile.
Solar suits daytime-only loads well — a borehole filling a tank during daylight is close to an ideal application, since the tank provides the storage. Grid supply suits continuous and high-power loads better: cold storage running overnight, processing equipment, and large irrigation systems where the required array and battery capacity would be substantial.
Many farms end up with both — solar for daytime pumping, grid for everything else. What matters is deciding on the basis of your actual load profile rather than assumption. A load assessment answers this properly.
The process for a farm connection
The stages are as for any connection but with more engineering involved: load assessment and supply sizing; a route survey to establish the line extension path; wayleave identification and negotiation, started early because it takes longest; application to ZETDC; site inspection; quotation and review; funding, whether individually or shared; then construction, metering and energisation.
The critical scheduling point is wayleaves. Start them at the beginning, not when construction is due. See our guide to what causes connection delays.
Rural electrification schemes
Some rural connections may fall within the scope of rural electrification programmes administered by the Rural Electrification Agency. Eligibility depends on location and programme criteria, and it is worth establishing whether your site qualifies before assuming a fully self-funded connection is the only route.
Getting a farm connection costed properly
Talk to us before applying. On farm connections the decisions made before the application — load sizing, route selection, and whether to approach neighbours — determine the cost far more than anything that happens afterwards.
See also our guides to connection costs, transformer costs and applying for a connection.
MyZesaConnect is an independent electrical consultancy and is not ZESA, ZETDC, ZERA or REA.
Planning around the season
Farm connections have a scheduling dimension that most other connections do not: if the supply is not energised before the irrigation season, the entire cost has been incurred for a year of no benefit.
Work backwards from when you need power, not forwards from when you decide to apply. Allow generously for wayleaves, which are the least predictable element, and for material availability. Starting a farm connection two months before you need water on the crop is planning for disappointment.
What to prepare before approaching neighbours
If you intend to propose a shared line extension, arriving with a vague idea rarely works. Arriving with specifics usually does.
Establish roughly what the extension would cost, how it would be divided, and what each party would pay. Have a clear position on how a party joining later would be treated. Be able to explain that each premises is metered and billed separately, since this is the concern raised most often and the easiest to resolve.
In our experience the conversation succeeds or fails on whether the person proposing it has done this preparation. Neighbours are generally willing; what they will not do is commit money to something nobody has costed.
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