/ Strategy & Feasibility

What is the right approach? Is it the right investment for you?

The world of renewable energy is moving quickly - it’s not always clear what’s hype vs what might help. Energy prices are rising and becoming less predictable, while technologies are improving, costs are coming down, and business models and approaches are evolving. We help you make sense of it by focusing on what's relevant to your site and your objectives. You'll get a clear view of whether it makes sense to move forward, wait - or not proceed at all. We provide the reasoning behind it to help you make the right decision for your business.

How we assess your opportunity

We build a clear picture of your situation, including your objectives, constraints, and decision-making processes. We also analyse your current and future energy use, building condition, and ownership or lease position. This analysis informs our recommendation.. We'll give you a clear go or no-go view with the reasoning set out to enable you to make a confident decision - the numbers come later.

Options analysis

We assess the full range of technology options available to you. For reducing energy costs, that means looking at how solar would perform against your actual load profile - including a yield study based on your site, orientation, shading, and local weather. For lines charges, it’s about modelling how a battery could respond to your demand peaks. For community energy, it involves working through different ownership and operating models. For solar farm development, it means looking at land, planning, ground conditions, and grid capacity.

We evaluate what's technically possible, what's financially viable, and what's optimal for your situation. Not every site suits every approach - the goal is to make the real choices clear, and explain what each one would mean in practice.

Site assessment

We complete a structural, electrical, and spatial assessment of your site. Can your roof handle the load? Is your switchboard ready? Are there shading issues that would undermine performance? For rural or utility-scale projects, we assess geotech conditions, flood risk, and available grid connection capacity. The answers to these questions can change the direction of the project - we may recommend a smaller system, or advise you not to proceed at all.

Financial modelling

We build a techno-economic model to assess cashflow with and without the system, across different procurement and ownership models, including outright purchases and power purchase agreements. The model allows us to assess the project performance (e.g. IRR, NPV, payback period). These projections are grounded in real data, including actual electricity consumption profiles and realistic future price assumptions. We test these against multiple scenarios to ensure your business case holds up under scrutiny.

/ what you get

Clear Deliverables,
Clear Decisions

We give you the information you need to make a confident investment decision - or tell you if it's not the right time.

/ 01

Yield study

This study will assess how much the solar system will generate at a specific location in a specific system configuration - combining site conditions, orientation, shading, and local weather to project how the system will actually perform over its life. Technical performance feeds directly into the financial model, with system sizing, degradation, and dispatch optimisation built in rather than assumed. The result is a model that can be reviewed and tested - by your team, your board, or your project lender.

/ 02

Techno- economic modelling (IRR, NPV, Payback)

Detailed financial analysis builds on the yield model and assesses the expected returns, a break-even timeline and how sensitive the outcome is to key assumptions like electricity prices and system degradation over time. Modelled across different procurement options, from outright ownership to power purchase agreements.

/ 03

Feasibility report with go/no-go recommendation

The report presents the outcome of the yield and techno-economic modelling. Summarising the viability, financial returns, capital and operating costs, and project risks, with a clear recommendation on whether to proceed and why. If the project doesn't stack up, we'll say so, and provide an explanation about what needs to change for it to make sense in the future.

/ 04

Preliminary system design

The optimal system configuration will be documented, providing sizing, configuration and technology recommendations.

Architectural sketch illustration
/ Why It Matters

The right decision at the right time

A solar or battery system is a +25-year asset. The numbers in a feasibility study aren't just financial projections, they're the basis for every decision that follows: what to build, when to build it, whether to build it at all.

This phase focuses on getting the inputs right. We analyse your actual load profile, line tariffs and ownership model and assess how your energy needs might change. This analysis leads to a clear recommendation before you commit any capital, with full reasoning laid out to help guide the decision-making process.

/ Capabilities

What the strategy and feasibility phase covers

The specific work we complete to assess your opportunity. We use the tools and approaches that are needed for your project - not every capability is required each time.

Solar generation & yield studies

PVsyst modelling of your specific site: orientation, shading, row spacing, and local weather data. We produces a generation profile across the system's life, not a headline number. The output forms the basis of your financial model.

Techno-economic modelling

Technical performance and financial returns are modelled together - with system sizing, degradation curves, and battery dispatch feeding the IRR, NPV, and payback outputs directly. The financial outputs are driven by the engineering, not the other way around.

Sizing optimisation & modelling

Homer and Gridcog are used to size systems and optimise battery dispatch against your actual load and tariff structure. The result is a system sized for your situation, tested across scenarios before anything is specified.

Solar resource studies

We conduct desktop resource assessment for most projects, supplemented with ground-based measurement campaigns for utility-scale or sites with complex shading and terrain. The level of analysis is tailored to what the project actually requires.

Concept development

Translating the options analysis into a preliminary system concept: what the system looks like, how it performs, and estimated costs.

Procurement & ownership advice

Advice on the best approach to procuring and owning a system. The key approaches are outright ownership, Power Purchase Agreements (PPA), and lease arrangements.

Site assessments

A physical assessment of your site: the structural condition of your roof, switchboard capacity, shading from adjacent structures, spatial constraints, and grid connection capacity. These are the checks that inform the system design, the size that can be accommodated, and sometimes a decision not to proceed at all.

Planning & grid coordination

Coordinating planning consents, geotech assessments, and grid connection applications for solar farm and utility-scale projects. This work runs in parallel with technical design to avoid late-stage surprises.

/ Action

Before the big commitment, understand the opportunity

Every solar or battery project is different. The right system depends on your site, your energy use, and your objectives. Our scoping engagement gives you the clarity to move forward - or the confidence to hold off if it’s not the right time. Starting from $5K, you’ll come away with a clear view of what’s possible, what it costs, and whether it makes financial sense.

/ Results

Real projects. Real outcomes.

Solar for Auckland Airport's Mānawa Bay outlet centre. Independent design and construction oversight.

Stanmore Road Apartments - Grey Lynn

Our second Cohaus project. 35 apartments where residents will benefit from centralised community-owned utilities.

/ FAQ

Common questions

How long does a feasibility study take?

Typically four to six weeks from the day we receive your site data and electricity bills. The timeline depends on the complexity of your site, whether we need structural assessments, and how quickly we can access your interval metering data. For straightforward commercial rooftop projects, it can be faster. For multi-site or utility-scale projects with consenting requirements, allow eight to twelve weeks. We'll give you an accurate timeline once we understand your situation.

What information do you need from us to start?

At a minimum: twelve months of electricity bills or interval metering data, site access for a physical assessment, and any existing building plans or structural reports. We'll also want to understand your objectives, your constraints, and how long you're likely to be in the building, because those factors shape what kind of solution makes sense. If you don't have everything, that's fine. We'll tell you exactly what we need and help you get it.

What if the feasibility study says our project isn't viable?

Then you've saved yourself the cost of a bad investment. We'll explain exactly why it doesn't stack up, whether that's roof condition, shading, unfavourable tariff structures, or simply that the returns don't justify the capital right now. Sometimes the answer is "not yet" rather than "never." If the economics improve with a tariff change or technology price drop, we'll tell you when it makes sense to revisit.

How is your assessment different from a free installer quote?

We start from your objectives, not from a product or a system size. Our engineers assess the full range of technical options available to you, across every solution type relevant to your situation, using independent modelling tools. We evaluate what's technically possible, what's financially viable, and what's optimal, then give you a clear recommendation with the reasoning behind it. We're not here to sell a system. If the numbers don't support proceeding, we'll say so, and we'll tell you exactly why.

What procurement options do you help clients think through?

It depends on the project. For solar and battery installations, the main models are outright purchase, where you own the asset from day one, and power purchase agreements, where a third party funds the system and you buy the power it generates at an agreed rate. Each model has different capital, tax, and balance sheet implications. Community energy schemes have additional models around shared ownership and operation. We map the options relevant to your situation as part of the feasibility process, so you can make the decision that fits your organisation, not just the one that's easiest to implement.

/ What's Next

Design

Once you know a project makes sense, the next question is what exactly to build. We produce construction-ready engineering design, coordinated with your building team, using vendor-neutral equipment selection. The design determines how the system performs for the next 25 years.

Discuss your idea

Talk to us about your project. We’ll help you understand the renewable energy landscape and provide impartial, no-strings advice tailored to your site and situation.

Discuss your idea

Arrow icon

Request capability statement

Learn more about our work and experience delivering projects like yours.

Request capability statement

Arrow icon