Engineering & Construction

Your installation — delivered on time and without business disruption

Our engineering and construction division delivers your energy project as a comprehensive all-round service — from site analysis and detailed planning through permits and construction to commissioning and staff training. You receive a turnkey result with a single point of contact and no interruption to your ongoing operations.

Key Takeaways

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1. In-house engineering, no outsourcing Structural engineering, electrical design, and manufacturer-independent component selection are all handled by our own engineers, eliminating interface risk.
2. One contact, 4–6 year payback Personal project management from permit to handover, with economics fixed during the planning phase and a typical amortisation of 4–6 years.
3. Zero business disruption On-schedule construction without operational interruption. Balteschwiler AG: 3,092 kWp delivered on time with zero business disruption.
4. Electricity at 8–12 Rp./kWh from day one Commissioning includes complete documentation and on-site staff training. From that day forward, your installation permanently produces electricity at 8–12 Rp./kWh.

From analysis to detailed planning

Every installation begins with a systematic site analysis. We assess solar radiation, shading, orientation, and inclination of the mounting surface — and on that basis determine which technology, module arrangement, and electrical infrastructure are optimal for your project. Technical feasibility, planning permission requirements, and economic viability are evaluated in parallel, not sequentially.

Our engineers then produce a complete detailed plan: structural calculations, electrical design, manufacturer-independent component selection, and a permit-ready project submission. You benefit from unbiased component recommendations and our procurement team’s market expertise — without being tied to any manufacturer. Projects such as Balteschwiler AG (3’092 kWp) — the largest rooftop PV installation in Canton Aargau, completed on time with zero business disruption — demonstrate what is possible when planning and execution come from a single source.

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Business disruption at Balteschwiler (3'092 kWp)

Our construction process

From site analysis to commissioning

1

Site Analysis & Feasibility Assessment

We analyse solar radiation, shading, orientation, and inclination of the available surfaces, as well as the existing electrical infrastructure. The result is a substantiated basis for your investment decision including an economic viability calculation.

• Solar radiation, shading, orientation, inclination
• Technology and module arrangement
• Cost-benefit analysis, amortisation period, subsidy options

2

Detailed Planning & Engineering

Our engineers develop the complete technical foundation: structural calculations, electrical design, manufacturer-independent component selection, and a permit-ready project submission.

• Structural engineering and mounting system
• Electrical design, inverters, protection concept
• Manufacturer-independent component selection

3

Permits & Tender Management

We obtain all necessary permits and ensure compliance with local, regional, and national regulations. In parallel, we manage the tender process and provide you with a substantiated award recommendation.

• Building permit and grid connection application
• Tender management and bid comparison
• Subcontractor selection and award

4

Construction & Coordination

Your personal project manager coordinates installation, electrical work, and grid connection according to a binding schedule. We monitor execution quality continuously and intervene immediately if deviations arise.

• Personal project manager as your central contact
• Installation without business disruption
• Quality control and schedule monitoring

5

Commissioning & Training

We carry out the technical acceptance test, hand over complete project documentation, and personally train your designated staff on site. From this point on, your own electricity produces itself every day.

• Technical acceptance and grid compliance
• Complete project documentation
• On-site training for your staff

Economic viability & next steps

The economic performance of your installation is not determined after commissioning — it is established during the planning phase. We integrate self-consumption optimisation, feed-in strategy, subsidy contributions, and tax aspects into the detailed planning from the outset. This ensures maximum return over the full system lifetime of 25 years and more.

The typical amortisation period is 4–6 years. The exact figure for your business depends on your load profile and available roof space. Further information on applicable subsidy programmes is available under Subsidies, and financing options without upfront capital under Financing.