Tag: smart meters

Technology / Software October 21, 2013

Utilities should open up API’s to their smart meter data

The world of utilities is changing with the roll out of smart meters. One of the biggest changes will be the wealth of data that utility companies will suddenly be flooded with.

As we noted in a previous post on GreenMonk, Centrica has:

18 million residential accounts and one million business accounts. Right now they are billing residential accounts every three months and they are managing 75 million meter reads per annum.

With the move to smart meters, Centrica will take electricity reads every 30 minutes and gas reads once per day. This means a shift from 75 million meter reads per annum to 120 billion meter reads a year. 120 billion – that’s billion with a b. That’s a phenomenal amount of data to have to deal with.

What will utilities do with this sudden influx of data?

Apart from the traditional billing function, many utilities have no idea what, if anything, they will do with the data. And this is hardly surprising, this is a new level of energy consumption information that we have not had access to previously. And furthermore, utilities have not traditionally been in the data business.

So, what should they do with all this new data? Obviously, I have a couple of ideas (more on that later), but likely you do too, and possibly so too do some utilities.

However, to really maximise their chances of coming up with a good use of the data, it’s best to expose it to as many people as possible. Crowdsource the ideas.

Utility companies should now give serious consideration to exposing their data, anonymised, through the use of openly documented API‘s and allow developers have at it. They should then run hackathons and competitions to see who can come up with the best applications making use of the data. Why not?

A couple of ideas – how about an application to highlight exceptional energy use. For example, would customers pay an extra €1 a month to receive an alert if their elderly relative’s lights didn’t go out at 11pm, or come on again at 8am? Or for people with holiday homes, would they pay €1 a month to be alerted if the lights went on when they’re not there? Or if the electricity went off (and there was food in the freezer, or worse beer in the fridge!), for example?

If utilities were to open the data to developers, who knows what amazing ideas would emerge – developers are after all, as we are fond of saying, the New Kingmakers.

(Cross-posted @ GreenMonk: the blog)

Technology / Software February 1, 2011

Power line communications now being used in more and more scenarios

I had a nice catch-up call with Mike Holt the other day – Mike is Semitech Semiconductor’s VP Sales and Marketing and we had previously talked last August.

Mike was bringing me up to speed on what has been going on with Semitech in the last five months. Semitech make semiconductor chips specially designed for power line communications (PLC). Power line communications is essentially the use of electrical cables to transmit data.

Power line communications is receiving a lot of interest these days because of the current buzz (bad pun, sorry) around Smart Grids. Every smart meter is, by definition, connected to an electricity distribution network – if this network can be used to send and receive information, it saves having to roll out a separate infrastructure for your smart grid communications.

During our call, Mike made me aware of a number of bits of Semitech news (they’ve expanded their sales team, they had new product announcements and they closed a new funding round) but by far the more interesting part of the chat, for me, was when Mike started to tell me of the new markets that are expressing an interest in PLC…

Trends & Concepts September 3, 2010

Friday Green Numbers round-up 09/03/2010

And here is this week’s Green numbers:

1.25 Gigawatts of Solar Thermal Power Approved in California in Past Two Days Will Double US Capacity

“There’ve been multiple gigawatts of solar thermal power plants planned for various places in the California desert for some time, but finally some more of them are getting the approvals need so that construction can start: The US Bureau of Land Management has issued a final environmental impact statement for the 1,000 MW Blythe Solar Power Project; and the 250 MW Beacon Solar Energy project has received final California state approval as well.
The smaller of the two first: Renewable Energy World reports NextEra Energy Resources has been given the green light by the California Energy Commission to begin construction on the 250 MW Beacon Solar Energy project.
Green roofs offer antidote to urban heat island effect

Researchers at Columbia University have demonstrated that a layer of plants and earth can cut the rate of heat absorption through the roof of a building in summer by 84%

Perhaps the greatest overall benefit of green roofs comes in tackling the “urban heat island” effect, which Gaffin suggests is responsible for two-thirds of New York’s localized warming over the last century. The conventional black rooftops that he calls “tar beaches” are major contributors to this phenomenon, absorbing and re-radiating the sun’s energy as heat. “We’re going to want to cool regional climate down, especially where people are living,” Gaffin noted. “So we’re going to have to confront the urban heat island effect.”

While conventional roofs can reach temperatures of 80 °C at 1.00 p.m. even outside of high summer, green roofs always stay closer to ambient temperatures. “These [conventional roofs] are almost dangerously hot spaces,” Gaffin told environmentalresearchweb. “That’s a huge heat load that we can get rid of.”

Plants in green roofs regulate their temperatures through evapotranspiration. “They evaporate copious amounts of water,” Gaffin explained. “That takes a lot of energy and means it’s a great way to stay cool.”
Creating 625,000 jobs and saving $64 billion through energy efficiency

Energy efficiency is THE core climate solution. It’s the biggest low-carbon resource by far. “Efficiency Works” [PDF], a major new report by Bracken Hendricks, Bill Campbell, and Pen Goodale, finds that a straightforward set of policies aimed at upgrading just 40 percent of the residential and commercial building stock in the United States would:
1. Create 625,000 sustained full-time jobs over a decade.
2. Spark $500 billion in new investments to upgrade 50 million homes and office buildings.
3. Generate as much as $64 billion a year in cost savings for U.S. ratepayers, freeing consumers to spend their money in more productive ways.
Cisco To Acquire Smart Grid Monitoring Tech Company Arch Rock

Cisco this morning announced its intent to acquire privately-held Arch Rock, which specializes in IP-based wireless sensor network technology with a focus on energy and environmental monitoring and Smart Grid applications.

Financial terms of the transaction are not being disclosed.
Carbon markets: HFC-23 – The smoking greenhouse gun

ONE of the curiosities of carbon markets is that they do not just trade in carbon. Other greenhouse gases can be given a value, too—sometimes a very high one. Claims that these prices promote scammery are now prompting some searching questions.

The gas at the centre of the controversy is HFC-23, a greenhouse gas which, on a weight-for-weight basis, is 14,800 times better at trapping heat than carbon dioxide. HFC-23 is produced as a by-product of the manufacture of HCFC-22, an ozone-destroying refrigerant. HCFC-22 is banned in developed countries, but developing countries can keep making it until 2030.

The acronyms do not end there. Under the Clean Development Mechanism (CDM) of the United Nations HCFC-22 producers in developing countries that destroy, rather than release, their HFC-23 can be eligible for Certified Emission Reduction (CER) credits, which can then be traded in the European Union’s emissions-trading scheme. This allows companies to buy extra emissions reductions to meet their cap-and-trade obligations, and in so doing to transfer money to schemes reducing emissions in developing countries.
3-8 Whitehall Place – real-time energy use

Trends & Concepts June 15, 2010

Understanding the Smart Grid – my TreeHugger interview

Jaymi Heimbuch contacted me recently to ask if I’d agree to be interviewed for a TreeHugger article she was planning to write on Smart Grids. “Love to”, I said.

Jaymi sent on the questions, I replied and today she posted the interview on TreeHugger.

Here are the questions and my answers:

TH: What’s the biggest barrier with smart grids right now? Is it utilities not latching on? Is the technology too new? Is it that not enough people understand what it is?

There are multiple barriers to complete smart grid roll-outs at the moment. The biggest one, as far as I can see is money!

The smart meter roll-out alone costs in the order of $150 per household just for the device. Then there is the installation engineer on top of that. And the software to back it up. In terms of the software, remember that presently utilities take maybe one meter reading a month. When they start taking readings from smart meters they will be taking up to 2880 per 30-day month when they are taking 15 minute readings (or 720 for hourly readings). If they have 1 million customers they go from 1m meter readings a month to 720m per month (or 2,880m). That’s a massive jump in the amount of incoming data which needs to be stored, queried for billing, and held for however long.

A lot of the software to handle this is still being developed and utilities, being very conservative, don’t want to be guinea pigs. And newer technologies tend to have a price premium.

Circling back to the price for the utilities. If they have 1 million customers, they are looking at spending hundreds of millions on the smart grid roll-out (smart meters, communications infrastructure for smart meters, back-end database for data, back-office apps for using the data – customer care, billing, etc.).

One of the big deals about smart grids is that it will help us reduce our consumption – from the utilities perspective, they should invest these large sums of money so we can reduce the amount we purchase from them? You can start to see the difficulties.

TH: What’s the most apparent way a smart grid will change the average person’s daily life? What about the most important way?

You know, the best way a smart grid could change the average person’s life is ‘not a jot’ – apart from reduced utility bills.

Utilities are talking up demand response programs and how they will be able to come into your house or apartment and turn down your air conditioner (for example) at times when supply is short and demand is high. This is a top-down approach destined to piss off customers and will in no way get buy-in from a skeptical public.

Far preferable would be some kind of automated demand response, completely controlled by the consumer, so far example as a homeowner I’d set my dishwasher at 8 PM to come on at 5c per kWh or 5 AM, whichever comes first. As long as the dishes are done by 7 AM, I’m happy. Similarly with other devices. Plenty of loads in the home are movable. You don’t care when your hot water is heated, as long as it is hot when you need it hot. A well lagged (insulated) boiler would mean you could heat it when electricity is cheap, and then use it whenever.

By the way, totally counter-intuitive but cheaper electricity has a higher renewable percentage so actively selecting for cheaper electricity means you are actively selecting for electricity with a higher percentage of renewables in the mix. How does this work?

Well, electricity prices on the wholesale market are very volatile. Consumers are protected from this but electricity prices can fluctuate by orders of magnitude within a 24-hour period. Price is set by good old supply and demand. Demand fluctuates according to day of week, time of day and by season. As the price drops on the wholesale market, it becomes less attractive for more expensive generators (the ones with start-up costs for their generation – the fossil fuel burners, for example) to stay selling in so they drop out. The renewables, on the other hand, are price takers. They don’t have significant start-up costs for generation so they stay in the market no matter what price they get. So, as the price drops, more and more fossil fuel generators drop out and the percentage of renewables in the mix increases!

TH: Other than this change in demand and timing, how will the smart grid help us incorporate renewables into the grid?

Utilities are used to dealing with a situation where their generation (gas coal, oil) is steady and predictable in its output and their customers’ demand is unsteady but generally predictable (demand tomorrow = demand this day last year +1-2%, say).

For various reasons utilities are having to move to a situation where they need to incorporate more renewables into their mix. Renewables generation is not steady and is only slightly predictable (via weather forecasts, for example). Because electricity has to be used as it is generated (can’t be stored, generally), the more unstable the generation, the more unstable the grid.

How can you fix this? Well, one way would be to align the demand with the supply.

How do you do that? …

Trends & Concepts February 25, 2010

Smart Grid Heavy Hitter series – Silver Springs Networks’ Raj Vaswani

This is the third of my Smart Grid Heavy Hitters’ interviews, and in it I talked to the CTO of Silver Springs Networks, Raj Vaswani.

It was a great interview – in it we talked about:

Raj’s definition and the benefits of a Smart Grid
The fact that, to-date Smart Grids are quite notional
How long it will be before home energy portals, vehicle to grid, and similar technologies will emerge and
The differences between Europe and the US in terms of Smart Grid rollouts

I wanted to go on for longer but unfortunately we ran out of time!

Business December 16, 2009

PG&E smart meter communication failure – lessons for the rest of us

Photo credit svale

What we have got here is a failure to communicate

The famous line from legendary movie Cool Hand Luke is the first thing that comes to mind when one hears about the fiasco which PG&E’s smart meter rollout in Bakersfield Ca. has become.

From the report on the SmartMeters.com site:

a class-action lawsuit has been filed representing thousands that will demand damages from the utility and third-parties also involved in the $2.2 billion project.

Bakersfield residents believe their new smart meters are malfunctioning because their bills are much higher than before. PG&E claims higher bills are due to rate hikes, an unusually warm summer, and customers not shifting demand to off-peak times when rates are lower.

This has to be a huge embarrassment for PG&E and their partners who are spending $2.2 billion on this project.

So what has gone wrong?

A recent report in the New York Times raises speculation that the meters themselves are to blame:

Elizabeth Keogh, a retired social worker in Bakersfield, Calif., who describes herself as “a bit chintzy,” has created a spreadsheet with 26 years of electric bills for her modest house. She decided that her new meter was running too fast.

Ms. Keogh reported to the utility that the meter recorded 646 kilowatt-hours in July, for which she paid $66.50; last year it was 474 kilowatt-hours, or $43.37.

At a hearing in October organized by her state senator, Ms. Keogh took out two rolls of toilet paper — one new, one half used up — and rolled them down the aisle, showing how one turned faster than the other. “Something is wrong here,” she said.

Scores of electric customers with similar complaints have turned out at similar hearings. At one in Fresno, Calif., Leo Margosian, a retired investigator, testified that the new meter logged the consumption of his two-bedroom townhouse at 791 kilowatt-hours in July, up from 236 a year earlier. And he had recently insulated his attic and installed new windows, Mr. Margosian said.

I spoke to good friend and fellow Enterprise Irregular Jeff Nolan earlier today after I saw him Tweet:

yeah I’m actually pretty pissed, PG&E installed a so called “smart meter” and my utility bill increased $300.

It seems Jeff was having the same problem and his bill was also up significantly over the same month last year.

There are a number of problems here – all to do with transparency and communication.

If, as PG&E say, this is because of “customers not shifting demand to off-peak times when rates are lower”, then it follows that PG&E have either failed to communicate the value of shifting demand or the time when rates are lower.

One of the advantages of a smart grid is that the two way flow of information will allow utilities to alert customers to real-time electricity pricing via an in-home display. PG&E have not rolled out in-home displays with their smart meters, presumably for cost reasons. If they lose the class-action law suit, that may turn out to have been an unwise decision.

Even worse though, in a further post on Twitter, Jeff said:

I’m waited for PG&E to put up the daily usage numbers, I won’t get those until next month for some unexplained reason

This defies belief, frankly.

It seems that PG&E’s smart grid rollout is woefully under-resourced at the back-end. What PG&E should have is a system where customers can see their electrical consumption in real-time (on their phone, on their computer, on their in-home display, etc.) but also, in the same way that credit card companies contact me if purchasing goes out of my normal pattern, PG&E should have a system in place to contact customers whose bills are going seriously out of kilter. Preferably a system which alerts people in realtime if they are consuming too much electricity when the price is high, through their in-home display, via sms,Twitter DM, whatever.

Jeff himself likened this situation to the e-voting debacle where the lack of transparency around the e-voting machines meant the whole process collapsed. In the same way, a lack of open standards around smart meters means we can only trust the smart meter manufacturers and utilities when they tell us that they are operating honestly. That is unlikely to fly.

This debacle has massive implications, not just for PG&E’s $2.2 billion smart meter rollout, but for smart meter projects the world over.

Transparency and communications failures can lead to utilities being sued by their customers, as we have seen with the PG&E example. Not a desirable situation for any company. The PR fallout from the Bakersfield rollout means PG&E will have a much harder time convincing other customers to sign up for smart meters and may potentially set back smart grid projects in California for years.

Trends & Concepts October 21, 2009

There’s gold in them thar bills!

Photo credit Urban Jacksonville

The output from smart meters is incredibly granular. Far more so than is obvious from the smart meter output graph above.

In conversations with Dr Monica Sturm (Director of Siemen’s Center of Competence, Metering Services) last November (2008) she confirmed to me that it is possible to identify individual devices in someone’s home down to make, model and year of manufacture by looking at their energy profile – the output of their smart meter.

This kind of information is absolute gold and don’t think the utility companies aren’t starting to wake up to the fact. They are, and they are not alone. Why else do you think Google have jumped into this space with their PowerMeter offering. Not to be outdone, Microsoft have also stepped in with their Hohm product.

It won’t be long before Apple joins the fray with a sleekier, sexier iHome application!

For the utilities themselves, there are data protection issues to be worked through but once they are (and they will be), the utilities will use this data to help make up for the earnings lost as customers become more energy efficient (consuming less expensive energy).

One revenue model you will start to see emerge is utility companies selling appliances (and possibly even cars!). How will it work?

Because the utility company will have full visibility of our energy consumption, they will see when your devices are inefficient/faulty. I can very easily envisage receiving a communication from my utility company in the not-too-distant future along the lines of:

Dear Mr Raftery (actually, as I am based in Spain it would be more likely to be Estimado Sr. Raftery but let’s stick with the English version),

We notice from your energy profile that you own a 2004 Indesit BAN12NFS fridge freezer. Our records show that in the last 3 months the compressor in that freezer has become much less efficient and it is now costing you €25 a month just to run that one appliance.

We have partnerships with service companies who could try to repair the compressor in that fridge freezer for you, or alternatively, we have a special offer this month on new energy efficient fridge freezers.

We can have a brand new fridge freezer installed in your home before the end of the week. We can take away your old one for responsible disposition. And all this will won’t cost you a penny, in fact it will save you €10* per month off your current bill!

So, to summerize, if you call our hotline now on 555-123 4567 you can save €10 off your monthly bill, have a brand new fridge-freezer installed free and reduce your CO2 emissions by 12kg a year.

What are you waiting for?

*We charge you €15 per month for the new fridge thus saving you €10 per month off your current bill. Terms and conditions apply.

That’s just one possible scenario of how the utility companies will make use of smart meter data to generate alternative revenue streams for themselves – can you think of others?

Tom Raftery's – Things to Come