Showing posts with label energy efficiency in homes. Show all posts
Showing posts with label energy efficiency in homes. Show all posts

Wednesday, September 20, 2017

British homes could cost-effectively halve energy demand by 2035

British homes could cost-effectively halve energy demand by 2035, according to a new report.


Man installing insulation on a roof.



A version of this article appeared on The Fifth Estate on 18 September.

In Britain, as a result of efficiency savings in products and efforts to make homes more efficient, homes now use 23 per cent less gas and 17 per cent less electricity than in 2008. Moreover, the average dual fuel household bill was £490 lower in 2015 than it was in 2004, according to the report from the UK Energy Research Council (UKERC).

The report says homes could save a further average of £270 a year at current energy prices, totalling about 140 terawatt-hours (TWh) – or the rough equivalent of the output of six Hinkley C-sized nuclear power stations – in heat and electricity.

This implies that the UK government would be much better off rekindling its home energy efficiency program – moribund for six years – than investing in new nuclear power stations – although much more electricity will be needed to charge the growing number of electric vehicles.

The report (using the government’s own guidance for policy appraisal) says that such investments would deliver net benefits worth £7.5 billion to the UK economy. This could rise to £47 billion if benefits such as health improvements and additional economic activity are counted.

The UKERC is therefore calling for the government to set a long-term target for energy efficiency – as it did on 26 July with a target to ban petrol and diesel cars by 2040 (a target beaten by eight years by the Scottish Government’s announcement to phase them out in 2032, made five days later).

The Committee on Climate Change believes that as much as 85 per cent of potential carbon emission savings in buildings are at risk of not being realised due to poor take-up of measures, implementation or standards enforcement.

The UKERC report makes an estimate of which of these savings are achievable under three scenarios of increasing ambition:

Table of home energy efficiency savings ranked by action, cost and achievability


This makes clear that more efficient appliances and boilers are easy wins – mostly thanks to EU policies (we won’t mention the ironies of Brexit here) driving greater efficiency in household appliances and boilers, and a new EU Regulation setting a framework for energy labelling, which simplifies and updates the energy efficiency labelling requirements for products sold in the EU.

The tough ones are help with insulation – particularly of walls and floors – and heat pumps. It is here where government support could therefore be most usefully targeted.

This graph shows where savings could be made over the next 18 years, and how much impact savings in different areas will make, compared with making no savings at all (the top dotted line):

Graph of home energy efficiency savings possible over the next 18 years

Source: CCC dataset

What is the cumulative value of this investment in the energy efficiency of the housing stock? The report analyses this in the “cost-effective” scenario. In the graph below, anything below the horizontal line is a cost compared to current levels, and anything above is a saving.

It shows that while the core savings come from energy use and a reduction in emissions and pollution, this has a knock-on benefit in health savings and GDP.

Graph of home energy efficiency savings and costs by method over 18 years



Source: produced from BEIS, 2016 using outputs from CCC dataset model

The headline takeaways are that “one quarter of the energy currently used in UK housing could be cost-effectively saved by 2035”, and that, “allowing for falling equipment costs and including the wider benefits of energy efficiency improvements, it should be possible to cost-effectively halve energy demand in UK homes.

“With innovation in technology and delivery, appropriately supported by government, it is likely we can go significantly further than this too.”

But to do so there needs to be significant policy change and public investment. The report points to the forthcoming opportunity in the expected (and delayed) Clean Growth Plan and National Infrastructure Assessment. Plus, to fill the current policy vacuum a new white paper on heat and energy efficiency is urgently required.

Two years after the government scrapped its Green Deal energy efficiency loan scheme, it has yet to announce a replacement. The company which bought the Green Deal Finance company (and some of the Green Investment Bank's investments from Macquarie) is also yet to announce a new scheme.

David Thorpe is the author of Energy Management in Building and Sustainable Home Refurbishment.

Tuesday, April 04, 2017

Why does the UK have lower energy bills but rising fuel poverty?

Note: A version of this piece first appeared last week on The Fifth Estate.
 
Average fuel bills have fallen and investing in energy efficiency does not need to push up energy bills according to new research from the UK’s Committee on Climate Change (CCC). Yet a recent debate in the Houses of Parliament on fuel poverty shows that ministers still lack the necessary political will to tackle its scale and are complacent about the effect of their efforts.

The UK ranks 14 out of 16 western European countries for fuel poverty, and ranks bottom for the proportion of people who cannot afford to adequately heat their home.

Yet household energy bills have fallen since the Climate Change Act was passed – despite fears expressed at the time that measures to tackle climate change would push bills up.

So why has fuel poverty slowly been creeping up? The fuel poverty gap, which is a measure of the difference between a household’s energy bill and what it can afford to pay, increased from £235 in 2003 to £371 in 2014, according to Rebecca Long-Bailey the Labour Party Shadow Secretary of State for Business, Energy and Industrial Strategy.

Real wages have fallen over the last decade since the banking crisis and the austerity politics era begin. That's part of the picture. But there is more.

Compared to Sweden. Britain’s winters are mild yet due to good insulation of homes levels of fuel poverty in Sweden are about half those of the UK. A typical Swedish wall is three times more energy efficient. So what is going on in the UK?

Why have fuel bills fallen?

Graph: Changes in annual energy bills from 2004 to 2008 and from then to 2016.
“Changes in annual energy bills from 2004 to 2008 and from then to 2016.” Source: CCC analysis. Estimates are for the average dual-fuel household with gas heating. 2016 estimates are based on consumption of 3,550 kWh for electricity and 13,500 kWh for gas. Note: 2004 is the first year for which comparable data is available to allow comparison over time.

Fuel bills in Britain have fallen not because of energy prices falling or homes being better insulated but because more energy efficient goods are on the market. This is in line with patterns found in Australian energy consumption.

Although the cost of measures to deliver a cleaner, low-carbon electricity system have added around £9 a month to the typical UK household energy bill in 2016, this was more than offset by a cut of over £20 per month due to reduced energy demand mainly from more efficient lights and appliances (according to the CCC’s fourth independent assessment of the impact of carbon budgets on energy bills).

This assessment finds that typical households which use gas for heating/hot water and electricity for everything else, paid (in real terms) £115 less per year for energy in 2016 than they did in 2008 when the Climate Change Act was passed. The total annual bill includes just over £100 to pay for decarbonisation measures.

Improvements in energy efficiency have saved the typical household around £290 a year since 2008.

This is largely due, as Green MP Caroline Lucas pointed out in the Parliamentary debate, not to the refurbishment of homes but to a European Union directive – the Ecodesign Directive – which, she said, is projected to produce average annual savings of £153 by 2020 – 20 per cent of the average annual energy bill.

This has been so successful that it has led to the virtual phasing out of all inefficient goods, including household appliances, boilers and windows, below the A rating since the energy rating label for goods was introduced 20 years ago.

It has encouraged the development of ever more energy efficient products. Consumer surveys show that about 85 per cent of European citizens look at energy efficiency labels when they purchase products.

The European Commission last week therefore decided to replace the current confusing A+++ to G labels for products by a clear and easier to use A to G labels to make energy labels more understandable.

Once this is approved by the European Parliament and the Council, product registration and public databases will be provided to make it easier for people to compare the energy efficiency of household appliances.

Fuel poverty and policy

But still fuel poverty is rising.

A household is said to be living in fuel poverty if its income is below the poverty line and it has higher-than-typical energy costs.

On 21 March, British MPs debated fuel poverty. The minister responsible for energy reminded everyone that in 2014 the Government adopted a target for England for improving the homes of all fuel-poor households to a band C energy efficiency rating by 2030. Along the way they are to be improved to a band E rating by 2020 and to a band D rating by 2025.

Only 7 per cent of fuel-poor households currently live in a band C rated property – most in much worse homes. Improving E, F or G-rated homes to band D can reduce energy costs by an average of £400 a year.

This is a lot more than the money saved by switching appliances to the most efficient, however much that helps. Besides, the poorest people cannot afford to buy new appliances.

A revised Act of Parliament that obliges energy companies to refurbish customers’ homes is about to see 500,000 homes improved over the coming 18 months. This is an extension of the Electricity and Gas (Energy Company Obligation) (Amendment) Order, which will prolong the Energy Company Obligation scheme from 1 April 2017 to 30 September 2018. It is well overdue and its tardiness has created uncertainty in the industry.

Seventy per cent of the support available under the Act will be directed at low-income homes. However there is currently no clear indication of what will happen to the obligation after 2018.

New private rented sector regulations will target the least efficient F and G-rated properties from 2018 by requiring landlords to improve those properties to at least a band E.

But is this enough?

The failure of policy

There has been an 88 per cent fall in the number of measures taken to retrofit homes since 2010 as a result of government policies, according to Long-Bailey.

Policies to date have failed to support the development of a large-scale sustainable market for energy efficiency investments.

The Association for the Conservation of Energy believes this is “because there has been a lack of a stable and long-term framework within which the energy efficiency supply chain can develop its market. Energy efficiency policies have proved susceptible to decisions driven by short-term political priorities”.

The Committee on Climate Change estimates that 4.5 million cavity walls remain un-insulated, 10 million easy-to-treat lofts could benefit from additional insulation and seven million solid walls are still without any insulation.

The case for further government intervention is clear, but the political will to spend money on this area is lacking.

The economic benefits of insulating homes

It’s not just about bills. It’s about human health and winter deaths, of which 8000 were said to occur last winter due to fuel poverty. But if that fails to persuade MPs to take action there are financial arguments too.

Analysis by consultants Frontier Economics suggests that the net present value of investing in insulating homes could be as valuable as the High Speed 2 rail link being backed by the government. It sees this type of investment as an infrastructure priority.

Opposition parties Labour and the Greens, Plaid Cymru and the Scottish Nationalists are united with the NEA that the National Infrastructure Commission and the UK Government must act on the strong case for domestic energy efficiency to be regarded as a hugely important infrastructure priority.

A further report by Cambridge Econometrics found that for each pound spent on insulating homes £1.12 is generated for the Treasury and £3 for the economy in GDP, and 42 pence is saved by the NHS.

The future effect of climate change targets on electricity bills

If it will not cost – but benefit – the taxpayer, will it cost the bill payer?

Graph: Central estimates for changes in annual household energy bill from 2016 to 2030.
“Central estimates for changes in annual household energy bill from 2016 to 2030.” Source: CCC analysis. Estimates are for the average dual-fuel household with gas heating.
The CCC calculates that the gradual shift towards low-carbon electricity could add a further £85-120 a year to a typical bill by 2030 if further policies to meet UK climate objectives are put in place, but that further improvements in energy efficiency have the potential to deliver even more savings for households in future (around £150, or more if wholesale costs continue to rise). That’s a net benefit to consumers of at least £30.

It points out that, “There is also a range of opportunities for business arising from the transition to a low-carbon economy. The UK low-carbon economy already makes up 2-3 per cent of GDP and employs hundreds of thousands of people.”

Jesse Norman, the Parliamentary Under-Secretary (Department for Business, Energy and Industrial Strategy), concluding the debate on fuel poverty for the Government, called their target to reduce fuel poverty “ambitious”.

But seen in this context it does not appear nearly as ambitious as it could be.

David Thorpe is the author of a number of books on energy, buildings and sustainability. See his website here.

Tuesday, January 31, 2017

The Green Deal is to rise from the dead

[Note: This is an updated and partial version of the article published last week on The Fifth Estate website.]

The UK Government’s sale of the Green Deal Finance Company, which finances energy efficiency retrofits, has slipped through almost unnoticed – and the Green Deal is to be relaunched by the private sector.

The GDFC’s new owners, Greenstone and Aurium, have stated their intention to commence the financing of new Green Deal loans by the end of the current quarter.

The sale

The sale was ordered by the Conservative MP George Osborne when he held the post of Chancellor of the Exchequer in an attempt to reduce government debt.

Like the Green Investment Bank, the Green Deal Finance Company was set up in 2012 (this was the year when the Conservative-Liberal Democrat alliance wanted to be “the greenest government ever”). It was a not-for-dividend company whose job was to provide low-cost financing to households for energy efficiency improvements to their homes.

It failed.

Originally, its 55 members came from the public and private sector and included energy companies, trade associations, local councils and potential green deal installers. They provided some of the start-up cash, with the rest provided by the Green Investment Bank and the European Investment Bank.

It had expected to deliver around £300 million of financing for Green Deal Plans before 2014. But it was an abysmal failure, and I have documented why here.

Last year it was lambasted by the Public Accounts committee, whose chair, Meg Hillier MP, said: “This blinkered approach resulted in a truly dismal take-up for Green Deal loans and a cost to taxpayers of £17,000 for every loan arranged. Savings in CO2 were minimal.”

The Energy and Climate Change Department (DECC – since abolished) oversaw the Green Deal and believed that the Green Deal Finance Company would provide loans of over £1.1 billion by the end of 2015. The actual figure was £50 million!

The finance company incurred large financial losses as a result of the low demand resulting in DECC writing off £25 million of the cash it loaned to it. It stopped offering new Green Deal Plans in July 2015.

The new owners

The board of the GDFC last week announced the sale of its wholly-owned subsidiary, GDFC Services, for £40 million.

The new co-owners are Greenstone Finance, which invests in organisations focused on financing in renewable energy and energy efficiency, and Aurium, which describes itself as “a structured finance boutique with a focus on renewable energy”.

They say they will continue to service the existing Green Deal loans and will commence financing of new Green Deal loans this quarter.

Richard Twinn, policy advisor, UK Green Building Council, welcomed the sale, commenting that “the limitations of the Golden Rule mean it will only be attractive to a specific part of the able-to-pay market. But in the absence of a policy alternative from government, the possible reignition of a pay-as-you-save mechanism could provide a viable option for households on moderate incomes to make improvements to draughty homes.

“However, one of the big failures of the Green Deal the first time around was the lack of incentives from government to drive uptake. Unless government grasps the nettle this could well become a problem once again.”

The Green Deal was established to address the fact that the UK has some of the most thermally inefficient housing in Europe. Its loans let customers, including landlords, improve their homes by installing energy efficiency products.

The loans are repaid as part of a customer’s electricity bill, which may (critics say: only if heating was provided by electricity) be reduced by the savings generated from the measures the loan financed – a “Pay-As-You-Save” scheme. The loan remains with the property – ensuring the payments are made by the person who benefits from the energy saving.

Kilian Pender, founder and chief executive of Greenstone Finance, commented on the acquisition and the relaunch by saying, “We believe that the concept of repaying your loan as you save on your energy bills is an excellent one and with the significant private investment that we have secured, we’re looking forward to rolling the Green Deal finance scheme out across the country. We will provide homeowners a cost-effective way to improve their homes and quality of life.”

Energy assessment company Elmhurst said it looked as if the new organisation was willing to breathe new life into the pay as you save model, observing that “the private rental market is certainly an opportunity for Green Deal”.

It said that some commentators believed that the legislation on Minimum Energy Efficiency Standards – which make it unlawful for landlords to grant a new lease on properties that have an energy performance certificate rating below E, from 1 April 2018 – actually allow some landlords to avoid bringing up their properties to the required E rating. But “with the re-launch of the Green Deal, this loophole looks like being closed”, it said. “The first task for the organisation will be re-launching the loan scheme and getting traction in the market place. This is definitely one to watch this year.”


David Thorpe is the author of: