"We can't plead ignorance" on sustainability says panel of design experts
CategoriesSustainable News

“We can’t plead ignorance” on sustainability says panel of design experts

"We can't plead ignorance" on sustainability says panel of design experts

Architects need to listen to younger generations and take a collaborative approach to sustainability, according to a panel of design experts in this filmed talk hosted by Dezeen for developer Brookfield Properties.

The panel included Brookfield Properties director of design Pragya Adukia, architecture studio Foster + Partners senior partner Dan Sibert and architecture studio BVN strategy director Esme Banks Marr. The talk was moderated by Dezeen co-CEO Ben Hobson.

The discussion followed the publication of a report commissioned by Brookfield Properties and Foster + Partners, which surveyed workers’ thoughts on the importance of sustainability in the workplace.

The panelists discussed how younger generations are increasingly more invested in furthering sustainable practices in their workplaces, with the report finding that 93 per cent of people working in an “environmentally friendly office” felt happier in their job.

The panelists was made up of experts in architectural design and strategy

“We want to make sure that we’re hearing what people say, which is why we co-commissioned this report with Foster + Partners – to listen to what the younger generation at work was saying, to give them a voice around their own sustainability, ideas and goals,” Adukia explained.

“The idea of sustainability is really a community-based thing,” added Sibert. “[There’s] a generational shift. People are no longer interested in just sitting and letting it happen to them, they actually want to be involved in it.”

“Our approach has always been ‘this is what can be realistically achieved’, it’s not just a fancy hashtag or a strapline,” continued Adukia.

“Let’s look at the data points, that’s very strong evidence, and then talk about what can be achieved, how we can future proof it.”

The talk took place in the public square of the 30 Fenchurch Street offices in London

“People are more vocal about their beliefs and what they’d like to see, it’s a good idea to involve these people in bigger conversations, and then take on board what they want to see,” she added.

“We can’t plead ignorance, none of us can plead ignorance anymore” said Banks Marr, echoing the importance of listening to public opinion around sustainability.

“There are some baseline things that we need to fundamentally just get right in buildings, new and existing, first and foremost. Sounds quite simple, but a lot of people still fail to do it,” she concluded.

The panel discussed the importance of qualitative data and community feedback during the design process

The panel also discussed how approaches such as biophilic design could help lead to more engagement with the environment and green policy-making.

Defining biophilic design, Banks Marr said “it’s not [just] putting plants into a space. Biophilic design is a term that’s been used for such a long time and in lots of different types of ways, when actually it means all of your senses, your experience with the space and your connection to nature.”

“It’s a stepping stone, or a starting point, to taking a really ecological world view of things,” she added.

“If I’m in these concrete jungle cities that do not have any connection to nature, and I don’t experience that on a daily basis, it doesn’t live in my psyche. So how am I expected to care about it and create real change?”

“There’s a desire across the board, not just in the city, to make sure we’ve got spaces to live and breathe in,” Adukia concluded.

Similarly, the panel noted the importance of creating long-lasting and future-proofed spaces.

“We need to get ourselves into that mindset where we actually think about things for a much longer term, and think and design them so they will change over time,” said Sibert. “So, can the building be designed for multiple lifespans rather than a single lifespan?”

“One has to take the overall sense of why you’re building in a city like this,” he added.

“Why do we build where, what does it mean for the overall picture of carbon and regeneration? What’s possible, but why would you make these choices as clients?”

Co-CEO Ben Hobson moderated the discussion

To conclude the talk, Hobson asked each of the speakers what they believed the key challenges the industry needed to overcome were.

“I think one thing we could definitely get better at, which we’re perhaps not currently doing enough, is knowing when to invite the real experts to the table. We don’t have to know everything,” answered Banks Marr.

“Data is absolutely key,” Sibert added. “If we could allow ourselves to find both the right dataset for the purposes of the buildings we have, and also then make the way we manufacture it be database based, I think that would be a massive step forward for us as an industry.”

“Our more successful projects have been where we’ve worked collaboratively and transparently. For any change to be implemented, I think it needs to be taken on board by all of its stakeholders. And that’s not just as landlords or developers – tenants, individuals, everyone has to be on board vocal about what they want out of it,” Adukia concluded.

The event was held at 30 Fenchurch Street, one of Brookfield Properties’ landmark office developments in the City of London.

Partnership content

This video was produced by Dezeen as part of a partnership with Brookfield Properties. Find out more about Dezeen partnership content here.

Reference

Electrifying? You May Not Need an Electrical Panel Upgrade
CategoriesSustainable News Zero Energy Homes

Electrifying? You May Not Need an Electrical Panel Upgrade

Electrifying? You May Not Need an Electrical Panel Upgrade

The growing number of homeowners seeking to abandon gas and oil and electrify their older homes are bringing newfound attention to electrical panels. These oft-forgotten metal boxes in the wall of your garage, basement, or other out-of-the-way space form a choke point for electrification, nationwide. Will you need a full electrical panel upgrade to meet your home’s increased electric demand?

“Many people don’t even know where their electrical panel is, and now it’s become one of the most important players in the whole electrification conversation,” said Brian Stewart, Co-Founder of Electrify Now. “The electrical panel is the unsung hero of the electrification project.”

Electrification—switching from gas and oil to all-electric appliances and heaters—will cut CO2  and other emissions, but it will likely increase your home’s electrical energy consumption. Watch out, because your electrical panel has a hard cap on how much electricity it can deliver to your house; how many amps at once. If you live in a home less than 50 years old, there’s a good chance you have a 200 A electrical panel that’s more than capable of handling these bigger electrical loads. But what if you live in an older home with a 100 A panel?

Let’s look at a typical energy load for an all-electric house and break down the range of options available if your electrical panel needs some help to meet the increased energy demand.

The basics

An electrical panel, also called a breaker box or circuit panel, is responsible for safely delivering electricity from the utility’s power lines to your home and then distributing loads throughout. A single, large switch controls the main breaker, turning your entire home’s electricity on and off. The row or two of smaller breakers circuit to different appliances, lighting zones, and areas.

You can tell how many amps of service your panel receives by

  • Inspecting the utility’s meter box (outdoors) for a label with an amperage rating
  • Inspecting your electrical panel for a label with its amperage rating
  • Checking the size of the main breaker on the panel

Do you need electrical panel upgrades?

To electrify your home, you may or may not need more electricity. “Over half of homes in the US have electrical service less than or equal to 100 amps,” explains Cora Wyent, Research Associate for Rewiring America. Let’s consider how that compares to a typical power load in an all-electric home:

  • Lighting and plugs: 6 kW
  • Electric vehicle (EV) charger: 10 kW
  • Electric cooktop and oven: 10 kW
  • Electric dryer: 5 kW
  • Heat pump water heater: 5 kW
  • Dishwasher, microwave, and other appliances: 1.5 kW each

Wyent calculated that running electricity to everything on that list would require around 121 A. So, if you have a 100 A electrical panel, you likely need to undertake some sort of upgrade to electrify:

  1. A full electrical panel upgrade and/or upsize of utility service
  2. Panel optimization
  3. Deploy technology, like smart panels, to manage your electrical load

1. Service upsize and electrical panel upgrade

To increase your home’s energy cap, you’ll need to upgrade your electrical panel, rewire it to increase the service you get from your utility, or both. This process can cost anywhere from $2,000 to $30,000 and take up to 6 months. Yikes! The Inflation Reduction Act offers rebates and tax credits to help offset the cost, but it’ll still be an expensive, time-consuming process.

“Sometimes upgrading and upsizing are unavoidable, but most homes with a 100 A circuit breaker have faster, safer, and more affordable options for electrifying their homes,” said Hannah Bruegmann, Director of Programs at Build It Green. “They’re just not as common because not enough people are familiar with the available options.” Even in older homes, you may not need a full electrical panel upgrade.

2. Panel optimization

“Panel optimization can help people electrify existing homes as quickly, cost-effectively, and equitably as possible,” Bruegmann says. In homes with 100 A panels or greater, you can often avoid a full utility service and electrical panel upgrade by optimizing the panel, through appliance choice and whole-home electrification planning. To do this, you’ll need to combine power-efficient appliances with circuit-sharing devices to manage your home’s energy use.

Not only does panel optimization save money compared to service upgrades, it also keeps the additional pressure off your local utility’s grid. And those same rebates and tax credits available for electrical upgrades often apply to energy-efficient appliances too. Upgrading to efficient appliances that draw less power makes optimization more feasible, effective, and comfortable.

Panel optimization strategies

“Even at peak use, most homeowners only utilize approximately 30% of their available electricity,” Bruegmann explained. So optimizing your panel may be easier than you think. Some strategies to manage your electrical load include

  • Selecting power-efficient appliances—they’re often nearly identical to less efficient models in cost and performance.
  • Air sealing your home to reduce heat and cooling losses.
  • Avoiding oversized EV chargers.
  • Pausing EV charging when other power-intense appliances, such as the washer and dryer, are running. You can do this manually or with a prioritized circuit-sharing device.
  • Selecting appliances that combine two functions, like a cooking range and oven, reducing the need for separate high-power circuits.

 

Span’s smart electrical panel provides monitoring and controls for all circuits plus flexibility for battery backup during power outages.

3. Smart electrical panel upgrades

A growing number of devices can help with panel optimization, including load-sharing devices, meter collars, smart circuit breakers, smart panels, and sub-panels. These tools can manage your electricity demand and avoid exceeding the overall energy supply (100 A) and the draw on specific circuits.

“Electrification can stress a home’s infrastructure,” explained Chad Conway, Head of Products at SPAN, a smart-panel manufacturer. “Intelligent load management can address the infrequent instances of high demand, automatically managing energy use in real time and saving the homeowner thousands of dollars compared to the cost of a [utility] service upgrade.”

With smart panels, smart circuit splitters, and other high-tech panel add-ons, you can prioritize electrical loads for each circuit. When the circuit reaches a certain draw, the technology will avoid overloading by shutting down the load designated with lowest priority. “This technology really enables a more efficient use of both the infrastructure in your home and the infrastructure on the grid,” Conway says.

A popular example is a shared circuit between an EV charger and an electric clothes dryer. The EV charger automatically pauses when you turn the dryer on, and then resumes charging when the dryer finishes. Unless you’re running laundry all night, your car will still be charged for your commute by the morning. No expensive electrical panel upgrade necessary!

Smart tech that prioritizes loads is also advisable if you plan to use solar panels and a solar battery system to power your home during an outage. You might also be able to take advantage of your utility’s time-of-use rates, or a demand-management rate, on a regular basis. These controllers offer user-friendly dashboards or apps to control your power balancing during emergencies or other special circumstances.

Electrify everything

“To hit our climate goals and reduce human environmental harms, we need to transition from natural gas to electric power as quickly, equitably, and cost-effectively as possible,” emphasized Bruegmann. Sometimes, electrical panel and service upgrades are unavoidable. But, many homes with 100 A electrical panels can electrify quickly and affordably via panel optimization, energy-efficient appliances, and power-managing technology.

Note: This article springs from Electrify Now’s webinar on “Electrical Panel Upgrades.” For more strategies and technologies to electrify your home, visit their YouTube Channel.

By Catherine Poslusny

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