Skip to content
GuideEconomicsObwalden

PV contracting in Obwalden: the EWO model

PV contracting in Obwalden means, under the EWO model, that the utility builds and operates the system on your company’s roof while you purchase the generated solar power at the contractually agreed fixed price. In the standard model, the term is 15 to 25 years depending on project scope and system size; afterwards, ownership transfers to you free of charge. EWO names a minimum system size, sufficient offtake capacity and a suitable roof as basic requirements. One important exception to any blanket assumption is the private-home case: the current contracting page explicitly describes company roofs, so homeowners must clarify availability directly with EWO.

What is PV contracting in Canton Obwalden?

Under EWO’s PV contracting model in Obwalden, EWO finances, builds and operates a system on a company roof. The company purchases the solar power at a contractual fixed price for 15 to 25 years, after which the system is transferred free of charge. Before requesting a quote, clarify roof area, offtake capacity, system scope, buyback value and ownership transfer.

Important

EWO does not publish a generally valid contracting price and explicitly describes the current offer for company roofs. This does not establish availability for every building in Obwalden or for private homes. Before deciding, check the specific roof assessment, offtake capacity, all additional components, the buyback value and the treatment of roof alterations in the EWO contract.

Key figures: PV contracting Obwalden

Key figures for PV contracting Obwalden, updated 09 September 2026
MetricValue
ProviderElektrizitätswerk Obwalden (EWO)
Contract term15 to 25 years, depending on project scope and system size
Electricity priceFixed price for the agreed contract term
Ownership at the endFree transfer of the system after the contract ends
Early buyoutBuyback possible at the residual value defined in advance

What determines the right path.

The investment logic is the first difference from owning a PV system: EWO builds and operates the system at its own cost and risk, while the company purchases the solar power at a fixed price. The contract therefore shifts capital commitment, but does not remove the need to match the roof and electricity demand technically.

The contract term affects the total price: EWO states 15 to 25 years depending on project scope and system size. A fixed price can therefore only be compared together with the term, expected solar output and the rules for roof work, operational interruption or early exit.

The price is not a published uniform tariff: EWO states that the electricity price is based on system size, investment costs and the contracting term. The economic calculation therefore needs the specific quote and a comparison with the expected grid-electricity price, not just the label “fixed price”.

Ownership has two defined moments: after the agreed 15- to 25-year term, the system passes into the company’s ownership free of charge. Before then, a buyback is possible if the residual value defined in the contract for that year is accepted.

The roof and load situation determine whether the project can proceed: EWO names a minimum system size, offtake capacity and suitable roof area as basic requirements. A large, shaded or structurally unsuitable roof is therefore not a contracting project merely because the owner does not want to invest directly.

Additional components must be read separately: depending on the project, EWO can include batteries or optimisers, but does not promise them for every contracting arrangement. The quote should therefore show the system, storage, optimisation, operation and any additional costs as separate items.

How the project stays cleanly managed.

  1. 1

    Define the use caserecord whether the roof belongs to a company, who would purchase the solar power and which loads occur during the day. The current EWO contracting description targets companies; for a private home, product availability must be clarified first.

  2. 2

    Pre-check the roof and basic requirementscompile roof area, roof condition, shading, planned renovations and expected offtake capacity. EWO names a minimum system size, offtake capacity and a suitable roof area as conditions for implementation.

  3. 3

    Obtain an EWO pre-assessment and system concepthave a tailored system planned with modules, mounting structure and, where appropriate, storage or optimisers. The key questions are how much PV capacity the roof can support and how much the company can consume itself.

  4. 4

    Review the contracting offer on a like-for-like basiscompare the fixed price, 15- to 25-year term, expected solar output, operation and maintenance, ownership during the term and rules for roof work and downtime. Compare the offer with owning the same system directly.

  5. 5

    Record buyback and transfer in writingcheck that free transfer at the end, annual buyback values and responsibility for removal or replacement if the contract ends early are clearly regulated in the draft. EWO’s product sheet names the buyback-price list as a contract annex.

  6. 6

    Coordinate technical and contractual implementationbefore installation, system scope, fixed price, term, ownership, operation, additional components and the property-specific grid and permit steps must align. After commissioning, EWO services the system during the term according to its published contracting description.

Questions to settle before the quote.

  • Compare the fixed price, 15- to 25-year term and purchase price separately
  • Pre-check the minimum system size, offtake capacity and suitable roof area with EWO
  • Understand the free transfer of ownership and buyback at the defined residual value
  • Do not assume that batteries, optimisers, grid procedures and incentive claims are included in the contracting price

More questions: PV contracting Obwalden

Official sources & references.

The responsible authorities are decisive. Always verify binding details – amounts, deadlines and conditions – for your specific property against the current status of the respective authority.

Continue

Relevant pages for the next step.

For Obwalden, you'll find matching services, regional projects and related guides that take you forward in practical terms.

Regional service

Solar Installation Obwalden – Planning to Commissioning

A solar project in Obwalden has three separate steps: the municipal building office confirms the notification route in writing or requires a building application; Elektrizitätswerk Obwalden checks connection and metering; and a complete application for cantonal winter-PV funding must arrive before modules are mounted. The quote separates mounting, electrical work and grid connection.

Guide

PV funding Obwalden: CHF 750/kWp from 75° tilt

Obwalden pays a flat CHF 1,000 plus CHF 750 per kWp — but only for winter-optimised systems with a 75 to 90 degree module tilt on existing buildings. A conventionally tilted roof system receives nothing from the canton.

Regional service

Flat-Roof Photovoltaics Obwalden – Loads, Roof Protection and Mounting

For solar on a flat roof in Obwalden, we first assess roof condition, structural capacity, shading and safe maintenance access. Tilt and mounting affect winter output, wind loads and the space required. The cantonal winter-PV incentive requires a 75–90° module tilt on an existing building and more than 2 kWp; a standard flat-roof array does not qualify automatically.

Guide

PV Building Permit Obwalden: Notification or Application?

In Obwalden, the notification procedure is usually sufficient for suitably adapted roof systems. Protected areas, protected objects, ground-mounted systems and certain facade systems instead require the ordinary building application.

Regional service

PV Installation Obwalden – Roof & Electrical

For PV installation in Obwalden, we assess usable roof or facade area, shade, supporting structure, and snow and wind loads at the property. A facade system is not permit-exempt simply because of its tilt: the municipal building office checks the notification route, protection status and design. For winter-optimised systems on existing buildings, assess cantonal funding before mounting modules.

Guide

Assessing PV economics in Canton Zug correctly

Assess which factors genuinely drive PV system economics in Canton Zug, from self-consumption and current WWZ tariffs to ZEV models, LEG and Pronovo one-time payment.