Skip to main content

YouGen Blog

« prev 1 66 67 68 69 70 73 next »

Viewing all blog entries

Making the most of passive solar energy

Posted by Tim Pullen on 14 October 2009 at 9:24 am

Making the most of passive solar energy

Using passive solar energy is a matter of design. To put it another way, if you don't design the house to use passive solar energy, it is difficult to use it well. So pretty much the same as any other form of energy then. What you need is three things; thermal mass (something to absorb …

Read More | No comments

Whole house approach to energy efficiency needed

Posted by Cathy Debenham on 12 October 2009 at 4:32 pm

Whole house approach to energy efficiency needed

Government must make a major shift in policy to transform the energy efficiency of our residential housing stock according to the Committee on Climate Change's first annual report. A whole house, street by street approach in which  households are offered an energy audit, with a follow up pac…

Read More | No comments

Learn how to generate your own electricity

Posted by Cathy Debenham on 8 October 2009 at 2:19 pm

Learn how to generate your own electricity

Wind farms - you either love them or you loathe them. I'm on the side of love. Ever since the first time I drove down the A395 in Cornwall, and they loomed, eerie and magnificent in the bleak dusk, I've been a wind turbine fan. So I'm excited to hear about Good Energy's Power from the People day …

Read More | 1 comment

Building a thermal store - experience sought

Posted by Cathy Debenham on 7 October 2009 at 9:35 am

Building a thermal store - experience sought

Can anyone help Jeff B with this query: I am thinking of having a very large thermal store (of the order of 2000 litres capacity) to use with my 30kw wood pellet boiler. Due to space restrictions this would have to be located just outside the house. Does anyone have experience of making a wel…

Read More | 2 comments

Rainwater harvesting: small is beautiful

Posted by Barry Nutley on 5 October 2009 at 11:49 am

Rainwater harvesting: small is beautiful

When we think of rainwater harvesting, we tend to envisage a full scale domestic system with a large tank, say 4000 litres, buried underground, providing water to the toilets, washing machine et al. This can be a costly business (especially if it's a retrofit project) with not much change from £7,0…

Read More | No comments

Equal feed-in tariff for existing generation has heavyweight support

Posted by Cathy Debenham on 30 September 2009 at 10:10 am

Equal feed-in tariff for existing generation has heavyweight support

Support for equal feed-in rates for those who already have small solar PV, wind turbines or hydro came from diverse parts of the renewable energy sector at yesterday's RegenSW conference in Bristol. Sponsor Christine Griffiths of Aeolus Power got her passionate call in early in the day - to be me…

Read More | No comments

Island grid increases energy security aspect of microgeneration

Posted by Cathy Debenham on 28 September 2009 at 10:04 am

Island grid increases energy security aspect of microgeneration

Security of electricity supply is one of the main reasons that people install their own solar panels or wind turbine. However, a system that is connected to the national grid currently doesn't afford total control. The benefit of grid connection is that you can sell any excess you generate to the…

Read More | 2 comments

Solar PV: how to tell the difference between panel types

Posted by Cathy Debenham on 25 September 2009 at 9:50 am

Solar PV: how to tell the difference between panel types

Solar PV (photovoltaic) panels come in lots of different types - mostly with long and complicated names - so it's not easy to know what the difference is. Last night I went to an excellent evening organised by the Sid Valley Energy Action Group - a group of enthusiastic volunteers who promote ene…

Read More | 1 comment

Are roof mounted turbines any good?

Posted by Graham Eastwick on 24 September 2009 at 10:43 am

Are roof mounted turbines any good?

Roof-mounted turbines were very popular a year ago or two. However, over the last few months a couple of reports have been published that suggest building-mounted turbines may not deliver as much electricity as hoped. One of the major manufacturers has just closed and stopped supplying turbines to …

Read More | 1 comment

Is Carlos Tevez a green god?

Posted by Cathy Debenham on 21 September 2009 at 9:36 am

Is Carlos Tevez a green god?

Manchester City's Carlos Tevez has "signed for the greens", according to the Daily Star following his move into "the country's most environmentally friendly superhome". A claim in the article that this makes him "probably the greenest footballer in the country" overlooks  David James' long-s…

Read More | No comments

Low carbon UK is well down the pecking order

Posted by Cathy Debenham on 17 September 2009 at 11:35 am

Low carbon UK is well down the pecking order

How much does the government really care about shifting the UK to a low carbon economy? Not a lot is the only conclusion I can come to from its spending figures. Yesterday's Guardian published a wonderfully simple, easy to read, chart called the definitive atlas of UK government spending, created…

Read More | No comments

Existing generators angry at feed-in cuts to income

Posted by Cathy Debenham on 15 September 2009 at 8:32 am

Existing generators angry at feed-in cuts to income

Feed-in tariffs are designed to incentivise people to invest in renewable sources of energy generation. Yet, the government's proposals will give much lower rates to existing microgenerators, leading to a cut in income for many. This seems a perverse move from government. The numbers of micro wi…

Read More | 6 comments

Controlling solar thermal systems

Posted by Gabriel Wondrausch on 10 September 2009 at 9:43 am

Controlling solar thermal systems

The controllers used in solar thermal systems come in many different shapes and sizes and offer a variety of different options. The most basic controllers just have a differential control - this activates the solar pump when the temperature at the sensor on the collector is at a higher temperature t…

Read More | No comments

Warm Front leaves many households cold

Posted by Cathy Debenham on 26 August 2009 at 2:29 pm

Warm Front leaves many households cold

The Warm Front scheme may be failing the poorest and most vulnerable households according to a report from the Public Accounts Committee published last month. Warm Front is meant to  improve energy efficiency and reduce fuel poverty through installing heating and insulation in eligible house…

Read More | No comments

Wind turbines: is vertical or horizontal best?

Posted by Graham Eastwick on 24 August 2009 at 12:05 pm

Wind turbines: is vertical or horizontal best?

There are two main categories of small wind turbines you will see as you travel around the UK today. Horizontal axis turbines look like traditional wind turbines and typically have two or three blades. Vertical axis turbines come in a number of designs, a spiral or some paddles blowing around in …

Read More | 5 comments

The case for secondary double glazing

Posted by Tim Pullen on 21 August 2009 at 12:08 pm

The case for secondary double glazing

I recently helped a lady refurbishing a typical 1960s three-bedroom semi with energy efficiency issues. A quick heat loss calculation gave a peak heat load of 8.5kW which should have equated to a use of about 10,000kWh of gas per year. Her actual gas consumption was 15,000kWh p.a. which was used…

Read More | 7 comments

Solutions to common rainwater harvesting problems

Posted by Barry Nutley on 19 August 2009 at 2:30 pm

Solutions to common rainwater harvesting problems

This months blog offers solution to some of the possible problems people with rainwater harvesting systems may encounter. Some may appear obvious, but... 1) Toilet cisterns do not refill after flushing. i. Possible power failure to pump. Check power supply is OK.ii. Pressure switch fail…

Read More | 2 comments

Off-grid versus on-grid microgeneration in practice

Posted by Matthew Rhodes on 17 August 2009 at 11:57 am

Off-grid versus on-grid microgeneration in practice

I really needed a holiday this year. So when we arrived at the holiday cottage we had rented in Orkney and saw the 6kW wind turbine outside my heart sank a little. We had accidentally opted for two weeks of off-grid existence – and slightly dodgily designed off-grid existence at that – with only…

Read More | No comments

Feed-in tariffs are not fair to renewable energy pioneers

Posted by Cathy Debenham on 14 August 2009 at 9:17 am

Feed-in tariffs are not fair to renewable energy pioneers

Renewable energy pioneers have been dealt a dismal hand by DECC's proposed rates for the feed-in tariff. Existing microgenerators (whose installation has been accredited under the Renewable Obligation) will be automatically transferred to the feed-in tariff on a rate of 9p per kWh (kilowatt hours)…

Read More | 1 comment

Welsh ease planning rules for renewable energy

Posted by Cathy Debenham on 12 August 2009 at 9:40 am

Welsh ease planning rules for renewable energy

Welsh planning rules for domestic renewable energy installations have been changed to make it easier for homeowners to generate their own heat and electricity. Following Scotland's lead, the Welsh Assembly has announced new regulations which mean that some microgeneration technologies will no lon…

Read More | No comments

« prev 1 66 67 68 69 70 73 next »