Energy, Sustainability and Carbon – Page 7

Post-occupancy energy monitoring conditions

Monitoring conditions commit you to metering, data collection and a report for several years after occupation. Design the metering in at planning stage or the condition cannot be discharged.

Unregulated energy and why it is left out

Part L compliance covers regulated energy only. Unregulated appliance and small power loads sit outside it, and mixing the two up distorts offset payments and reduction claims.

Communal heat pump plant rooms in flatted schemes

Each arrangement puts its space demand somewhere different: on the facade, in the core, or in a cupboard inside every flat. That choice is a viability question.

Heat pump acoustic enclosures without losing efficiency

An enclosure that cuts sound power by 8 dB and airflow by a third can leave the neighbour worse off, because the compressor simply runs for longer.

Overheating and acoustics: resolving the window conflict

Where an open window breaches the internal night-time noise criteria, the overheating strategy has to work with it closed. Layout and shading decide whether that is affordable.

Modern methods of construction in a planning submission

Offsite construction changes what an officer sees: joint lines, applied brickwork, repeated plot widths and wide load deliveries. This sets out how to evidence each and which conditions to renegotiate.

Rooftop heat pump plant: visual and acoustic limits

Rooftop heat pumps have to satisfy the acoustic case and the airflow case at once, on a roof already claimed by photovoltaics, greening and attenuation. Here is how to draw and evidence the resolution.

What a sustainability statement adds to an energy statement

The two documents overlap at one point only. Keep carbon modelling in the energy statement and let the sustainability statement carry water, materials, waste and resilience.

CIBSE TM59 overheating assessment for residential

TM59 asks a dwelling to pass two criteria, and the bedroom night-time test catches most schemes first. Here is what governs the result.

Gas boilers in an energy statement and where policy stands

Part L still permits a gas boiler in a new dwelling while local plan carbon and heat network policies often rule it out. What the energy statement has to show either way.

Circular economy targets and how they are evidenced

A circular economy statement is only as good as the evidence behind its numbers. Targets for reuse, recycling and design for disassembly have to be traceable to the demolition audit and the structural design.

Overheating evidence in planning beyond Part O

Part O controls overheating in new homes through building regulations. Planning asks a different question on constrained sites, where the windows you need for cooling are the windows noise and air quality say to keep shut.

Energy statement for a single self-build dwelling

A single dwelling energy statement should be four to six pages answering one policy clause by clause. Most are either missing or four times too long.

Net zero targets in local plans and how they are secured

Section 1 of the Planning and Energy Act 2008 lets plans require energy standards above the building regulations. Whether the policy bites depends on the metric, the instrument and the viability evidence.

Heat pump noise and the assessment planning expects

The permitted development right for a domestic air source heat pump depends on an MCS noise calculation at the neighbour's window. Where the right falls away, expect a BS 4142 assessment instead.

Post-occupancy energy reporting conditions explained

Energy monitoring conditions are easy to accept at committee and hard to discharge years later. The fix is a metering strategy designed around the reporting metrics before the building is built.

The energy hierarchy applied to an existing building

The be lean, be clean, be green sequence assumes a blank site. On an existing building the constraints arrive in a different order, and the energy statement has to say so.

Solar photovoltaics on a pitched roof: what to model

Roof-mounted solar is usually permitted development, but the numbers in an energy statement still have to be defensible. Here is what to model and what to declare.

Heat networks, connection zones and the planning response

Where a heat network is within reach, authorities expect connection or a design capable of connecting later. Here is how the requirement arises, how it is secured and what evidence settles it.

Heat pumps in flats: energy strategy at planning stage

Choosing between individual and communal air source heat pumps in a block of flats decides plant space, riser routes, condenser positions and the acoustic case. Here is how the choice plays out at planning stage.

SAP and SBEM outputs a planning officer will ask for

SAP for dwellings, SBEM or a dynamic model for everything else. Which output pages a planning officer expects, and the mismatches that get an energy statement sent back.

Passive cooling features and how officers assess them

A shading strategy that exists only in the thermal model has no planning consequence. What officers look for on elevations and sections, and where passive measures run out.

Air tightness targets claimed at planning stage

Design air permeability is a modelling input. The pressure test measures what was built. What drives the two apart, and how councils now condition as-built evidence.