Hydro Development
& Consultancy

Call: +44 (0) 1250 710659
or E-mail: enquiries@glenhydro.co.uk

Fantastic sources of renewable energy could be flowing accross your land right now.

Old waterworks can sometimes be reinstated

Hydro Consultancy Stages

Glen Hydro Consulting delivers consultancy and project management services to landowners.

Initial Appraisal

We are happy to discuss any potential hydro scheme and carry out a desktop appraisal free of charge. We will ask you to provide us with details of your land holding and the watercourse you are considering for hydro development, plus any other relevant factors such as existing infrastructure, ease of grid connection, etc. We will then use our mapping, flow analysis and hydro power generation software to give you an indication of the potential electricity generation and revenue. We will also give you some initial feedback on likely return on investment and any potential environmental hurdles to development. This will allow you to make an informed decision on whether to commission a site survey.
You can call or email us with your details or complete our online form by clicking below.

Free Hydro Evaluation

Site Visit

We will visit your site and make an assessment of the viability, capital costs, generation potential and revenue of any schemes. On the visit we will need approximately an hour of your time to gather some background information. We would then survey the scheme, which can take between 2-5 hours. You are welcome to join us in the survey and it is indeed beneficial for us and normally for the client. Our findings will be delivered in a report within four weeks of the visit. More details of what is included in the report and a typical example is available here The charge for this visit and report depends on scheme complexity and location. PLease contact us for a quote.

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› Example site visit report

Feasibility study

Should the site visit report prove positive, this phase involves working up the scheme in much more detail and initiating discussion with the regulatory authorities. As well as developing the scheme design, we will obtain detailed quotes for budgetary purposes and make initial approaches to SEPA, SNH and the relevant DNO (electricity grid provider). Flow assessment via in situ monitoring may be required. The results of the feasibility study are provided in a comprehensive report. Costs are dependent on the complexity of the scheme and would be confirmed with the site visit report. Timescales are typically three-six months depending on the extent of the flow monitoring required and the speed of response from the authorities. More details can be found here
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The order of this project work will be tailored to your requirements and to the specific challenges of your scheme. For example, if it is believed that regulatory permissions will be the major hurdle, then we may discuss the project with SEPA first and proceed with the other elements once we have had positive feedback. In taking this approach we aim to save you money should the project not be viable.

Detailed design & permissions

This is the most complex and time consuming stage of the project. The work splits fairly equally into those elements required for the detailed design of the scheme (including topographical surveys, civil, mechanical & electrical engineering drawings) and the interaction with the relevant statutory bodies to gain the necessary permissions. As well as an abstraction licence from SEPA, planning permission from the local authority will be required and a formal grid connection agreement will need to be reached with the DNO (electricity grid provider). These processes are also likely to involve interaction with SNH and the local fisheries board. It is usual for multiple environmental studies to be required at significant expense. At this stage we will also seek competitive tenders for all relevant aspects of the scheme. More details of the steps within this stage can be found here.


Once the permissions are in place we can finally start building the project. One of the primary concerns during this phase is that the construction is undertaken with minimal impact on the environment. It is probable that the grant of both the abstraction licence and planning permission will contain rigorous conditions regarding environmental protection and indeed will often stipulate limited periods of the year when construction can take place. To achieve the necessary standards, we work with experienced civil engineering contractors who have good experience of the installation of hydro schemes. At the end of the construction and commissioning, we will provide you with all the training you require and a detailed project information pack. More details of the steps within this stage can be found here.

Ongoing maintenance

We design our systems to require the minimum of ongoing maintenance. The water screening at the intake will require checking and possibly clearing/cleaning periodically. Frequency depends on the type of screening used, but will be more frequent during periods of high flows. The mechanical parts of the turbine and generator will need inspecting and lubricating 2-4 times per year and an annual service. Most schemes will also benefit from an internal clean of the pipe and de-silting of the intake every one to two years. Most of this work can be undertaken in house with some limited training or we can provide a full maintenance package.

British Hydro Power Association Scottish Land & Estates Renewable Energy Assurance Ltd