Understand the value that renewable energy consultants can bring to your sustainable build

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As energy consultants, we provide ideas for how a company might make their use of energy more cost-effective and environmentally friendly. As the built environment (residential and commercial) is putting more focus on renewables and better ways of building, the role of an energy consultant is changing too.

We now incorporate building physics into our work, utilising simulation modelling and data to understand how a building behaves. This goes some way to helping manage comfortable temperatures in the property throughout the summer and winter months, and in some cases, assess the daylight levels within the building to ensure the user is benefitting from sufficient daylight exposure. All of these building physics elements help to improve the well-being of the occupants whilst simultaneously reducing the energy demand of the building, and ultimately its carbon footprint too.


How do you work with an energy consultant?
An energy consultant will join the process in the early RIBA stages – ideally RIBA 2. At this stage, they will advise on various risks inherent to the design of the building. They will also work with the architect to optimise the design, and improve areas that could decrease comfort, increase energy demand and push up operational costs.


A particular area that we concentrate on at Mesh is passive design analysis. This is where we can deliver real value in helping our clients to mitigate the risk of overheating and is a good example of simulation modelling. The analysis is typically repeated in an iterative process as we ‘design out’ the issues.


We will also work with our clients on the building’s floor plan to ensure there is adequate space to house the electrical and mechanical energy services. This could be anything from batteries to heating manifolds, and even ductwork. If a client has opted for solar, which is often the case, we work with them to optimise and maximise their photovoltaic array in terms of positioning and potential energy storage.


What difficulties might you encounter without a consultant?
There are several hurdles that you’ll encounter during your planning and build process, and perhaps during ongoing maintenance too. Of course, we are a little biased here, but we think it’s imperative that you involve a renewable energy consultant. Not only to ensure that your building is sustainable and high-performing but also to ensure that you have someone in your corner to manage the stringent requirements around planning and compliance, and mechanical and electrical.

Without a renewable energy consultant:

  • You may struggle to pass your local planning application
  • You may encounter compliance issues, specifically with ‘Part L’ or ‘Part O’
  • Your building could be at risk of overheating, which is damaging to the environment and costly
  • You may find yourself proposing a renewable energy system that is not feasible or suitable
  • You may miss key opportunities to reduce your long-term running costs
  • You may not get the full picture of energy systems specifically suitable for your project
  • Your solar may be inefficient, with energy lost to the grid with little benefit to the occupant


Who is Mesh and how do we work?
Mesh began by offering renewable energy feasibility studies to homeowners – a quickfire way of feasible routes to reduce their energy bills. Over the years, Mesh has grown into a multi-disciplinary consultancy, offering energy consultancy, building performance consultancy and mechanical services design to architects and developers, from residential self-builders to large commercial outfits.


At Mesh, we work as two core teams; the Building Performance team and the MEP team. These teams initially work together to assess a building at an engineering level and then at a building services level. The building physics team works to reduce the size of the services required, and they do this through smart and passive design. The engineering team then comes in to action the feasibility work and brings these ideas to life.


The early bird catches the worm
By contacting a renewable energy consultant early, they can have maximum impact in optimising the design of your building, guaranteeing that your building services are as small as possible (reducing your capital cost) and that your building retains and reuses as much energy as possible (again, reducing costs). All of this is done with what’s widely known as green technology or renewable technology, which works hard to reduce overall carbon emissions now and forever more.


If you’re a house builder, architect or commercial property developer, talk to us today about how Mesh can vastly improve the health, sustainability and performance of your building and its occupants. Let’s build better.

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by Doug Johnson 9 December 2025
As the year draws to a close, the Mesh team has been out in the community helping to spread some much-needed festive cheer. From fundraising in Santa suits, food donations for local families and donating warm clothing for those who need it most, the team has embraced the spirit of giving in the run-up to Christmas. Running for a Cause: The Guildford Santa Fun Run Despite the wet weather, members of the Mesh team braved the elements for the Guildford Santa Fun Run, raising money for the children’s charity, Challengers. Joined by Jacqueline Smith from our client TALO, Mesh’s Founder and Director Doug Johnson, along with Maria Fiore and Ilianna Filippopoulou, completed the festive run in full Santa attire. The team also reached their fundraising target, helping Challengers continue its exceptional work in supporting disabled children and young people in the community. Supporting Local Families in Need through the Lions Christmas Food Parcel Appeal For another year, Mesh proudly supported the Lions’ Christmas Food Parcel Appeal, helping to provide food parcels to individuals and families in need over the festive period. Thanks to the generosity of the Mesh team and many local businesses and residents, a huge selection of donated goods is now being sorted and delivered by the incredible volunteers at Lions Farnham. This annual initiative continues to be a meaningful way for us to support vulnerable members of our local community during what can be a really challenging time of year. The Coats for All Initiative Mesh has also taken part in the Coats for All initiative, a brilliant scheme that distributes warm, good-quality coats to anyone who needs one. Through the generosity of colleagues, friends, and partners who donated pre-loved coats in excellent condition, we are helping to ensure that more people can stay warm this winter. Many local libraries are acting as collection points, making this a simple but impactful way for people to support others in the colder months — and we are proud to play our part. According to Mesh Founder and Director, Doug Johnson: “Community sits at the heart of Mesh, and it’s been inspiring to see our team give their time, energy and generosity to support such worthwhile causes - not just this Christmas but throughout the year. Whether running through the rain, collecting food, or fundraising for local charities, everyone has contributed to making a real difference — and I couldn’t be prouder.” At Mesh, we believe that small acts of kindness create meaningful impact. A heartfelt thank you to everyone who donated, participated, or volunteered this year. We look forward to continuing our community support into 2026 and beyond."
9 December 2025
As the year draws to a close, the Mesh team has been out in the community helping to spread some much-needed festive cheer. From fundraising in Santa suits, food donations for local families and donating warm clothing for those who need it most, the team has embraced the spirit of giving in the run-up to Christmas. Running for a Cause: The Guildford Santa Fun Run Despite the wet weather, members of the Mesh team braved the elements for the Guildford Santa Fun Run, raising money for the children’s charity, Challengers. Joined by Jacqueline Smith from our client TALO, Mesh’s Founder and Director Doug Johnson, along with Maria Fiore and Ilianna Filippopoulou, completed the festive run in full Santa attire. The team also reached their fundraising target, helping Challengers continue its exceptional work in supporting disabled children and young people in the community. Supporting Local Families in Need through the Lions Christmas Food Parcel Appeal For another year, Mesh proudly supported the Lions’ Christmas Food Parcel Appeal, helping to provide food parcels to individuals and families in need over the festive period. Thanks to the generosity of the Mesh team and many local businesses and residents, a huge selection of donated goods is now being sorted and delivered by the incredible volunteers at Lions Farnham. This annual initiative continues to be a meaningful way for us to support vulnerable members of our local community during what can be a challenging time of year. The Coats for All Initiative Mesh has also taken part in the Coats for All initiative, a brilliant scheme that distributes warm, good-quality coats to anyone who needs one. Through the generosity of colleagues, friends, and partners who donated pre-loved coats in excellent condition, we are helping ensure that more people can stay warm this winter. Many local libraries are acting as collection points, making this a simple but impactful way for people to support others in the colder months — and we are proud to play our part. According to Mesh Founder and Director, Doug Johnson: “Community sits at the heart of Mesh, and it’s been inspiring to see our team give their time, energy and generosity to support such worthwhile causes - not just this Christmas but throughout the year. Whether running through the rain, collecting food, or fundraising for local charities, everyone has contributed to making a real difference — and I couldn’t be prouder.” At Mesh, we believe that small acts of kindness create meaningful impact. A heartfelt thank you to everyone who donated, participated, or volunteered this year. We look forward to continuing our community support into 2026 and beyond."
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Members of the Mesh team joined a local charity to help with a tree planting project on the Hampton Estate. This was organised by the Surrey Hills Society, an independent charity who do some great work to encourage people to spend time in the beautiful Surrey landscape. According to Mesh Director Doug Johnson: "We are always looking for volunteering ideas and this charity's work fits so well with our sustainability values. This was our second volunteering day this year. It is very much part of our ethos and culture to make a difference to our environment. These events are also a fantastic opportunity to bring our team together. Thank you to the Surrey Hills Society for a really good day in the autumn sunshine. It’s just so good for the soul!" Five members of the Mesh team joined the day – travelling from Worthing, Bristol and as far as Exeter to help out.
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