Data Analytics: A Smart Approach to Energy Management

Energy management in the industrial and commercial sectors has seen a consistent adoption of technology that measures and monitors electricity, gas and water consumption. These devices create banks of data that tend to be largely underused but have the potential to create a variety of opportunities for the businesses. 

The bringing into focus of data analytics to support an energy management strategy can render immediate financial benefits through energy waste management and carbon reduction.   

Some of the advantages of adopting data analytics include increasing operational efficiency, both of installed devices and workforce. It also creates an opportunity to improve maintenance strategies and reduce unnecessary maintenance calls. Monitoring data has the potential to detect malfunctions early when combined with other analytics methods.  

Good data will underpin any Net Zero strategy which will drive positive colleague relations and investor confidence.  A strong data management strategy will also support with upcoming reporting requirements such as Streamlined Energy and the Task Force on Climate-Related Financial Disclosures (TCFD). 

Coopertec are supporting organisations on this journey.  Through an operations review and data assessment, our analytics support team in India can offer a competitive approach to mapping direct energy savings opportunities, keeping your data healthy and create a long-term plan for a best in class data analytics strategy.   

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ESOS working with SECR

Extract from our magazine contribution - Energy Managers Association July 2020

https://www.theema.org.uk/the-ema-magazine/

ESOS Re-cap

ESOS (Energy Savings Opportunity Scheme) was transposed from the EU Energy Efficiency Directive and mandated into UK legislation in 2012.  The intent was to raise energy awareness at 'senior level' and to highlight opportunities that may exist to reduce energy waste.

Organisations that qualify must carry out ESOS assessments every four years. These comprise of reviewing energy used by their buildings, industrial processes and transport, in order to identify cost-effective energy saving measures.

The scheme was originally estimated to achieve £1.6bn net benefits to the UK, with the majority of these being directly felt by businesses as a result of energy savings.  The cost to businesses was predicted at £35m (ESOS Impact Assessment DECC0142 June 2014).

ESOS has been incorporated into the UK law and no impact from the Brexit Withdrawal Agreement is anticipated.

 SECR Re-cap

On the 1st April 2019, new regulations came into force for public disclosure of carbon reporting for large businesses.  This new reporting requirement is known as SECR (Streamlined Energy and Carbon Reporting). On the 1st April 2020 the first company disclosures were made, and by March 2021 all large organisations should have filed their first report.

SECR is designed to be a ‘streamlined’ replacement of the ‘Carbon Reduction Commitment Energy Efficiency Scheme’ (CRCEE).

SECR requires board ‘sign off’ and appears in the annual company reports.  Green House Gas (GHG) reporting and underlying energy use must be declared.

So what have we learnt?

Well, a lot has happened since the first ESOS compliance year in 2015:

·       Net Zero was passed into legislation.

·       The Nuclear power plant at Hinkley C was approved.

·       The onset of renewables in the UK manifested in zero dependency on coal for the first time since the industrial revolution.

·       Demand Side Response is now a credible tool for Grid balancing.

·       And of course, in the spring of 2020, COVID-19 impacted heavily on the global health and finance sectors and negative oil prices were recorded for the first time.

 Now that two of the three ESOS compliance years have been completed, has the legislation achieved its ambition to raise awareness amongst businesses?  I would say yes, but maybe not in the form of the original thinking.  ESOS audits are expensive, and a legal requirement, so these two factors alone will get senior management attention. 

ESOS audits are expensive for the following reasons:

·       Compliance years only come around every four years, creating a compressed time window for auditors to conduct their evaluations.

·       They require detailed and time consuming analysis for all ‘paid for consumption’, some of which will not be directly addressable by the business.

Perhaps a more practical approach would be to stagger the audits over each four year period, whilst adapting the de-minis rule (currently at 10%), so that the lower value analysis is not required.

However, one important by-product of ESOS is the increased adoption of ISO50001 Energy Management Systems as a route to compliance.  Complying to this standard forces businesses to ensure that their processes consider energy management and that there is a structure in place for regular review.

A controversial point could be made that the Grid is decarbonising naturally (additionality of renewables), therefore, is energy intensity as big an issue as it was in 2014? 

This year we saw negative commodity costs with our exported solar costing us money.  So, will negative commodity costs become more prevalent in the future, especially when Hinkley C comes online in around five years time, and Grid balancing becomes even more complex?

There is also the question around how nuclear power manifests in a carbon report.  At present, there is no agreed mechanism for reporting on the carbon impact of nuclear generated power.

Net Zero has been billed as one of the most important pieces of legislation for many generations, in an attempt to tackle the climate emergency, with SECR developed as one of the support tools.

With many businesses now commencing SECR, here are some views around early observations:

·       SECR does not enforce a detailed breakdown disclosure of carbon usage, eg electricity, gas and refrigerant etc. 

·       SECR alone will not be an energy reduction ‘driver’, unless some industry benchmarking is applied.

·       We've not yet had year-on-year reporting and the visibility of those comparisons may drive change.

·       The current stakeholder focus is on greenhouse gas emissions and working towards net zero which has resulted in the sourcing of low-carbon energy becoming a greater priority over energy efficiency.

SECR disclosures are hugely important, but regrettably they are often relegated to the unfashionable end of a voluminous annual report.  They appear as tiny summary tables, so the figures are not always meaningful.  This is particularly true with the aggregation of fuel consumption into KWh.  Nobody uses metrics of KWh equivalents to manage transport fleets.  This means that stakeholders are unable to draw any direct comparisons between the data for companies operating in the same sector.

  To summarise;

ESOS audits are expensive and a grudge cost for business, but they have served their purpose in raising awareness around energy savings opportunities.

SECR is a positive step forward, but in truth, the summarised detail is lost in the annual report and it may be better if more analysis was provided in the disclosure.

For the next ESOS compliance year of 2023, it would be worth unwrapping the SECR summary for deeper analysis.  This may support senior management in understanding the key drivers, as well as assist with the constant drum beat of energy awareness.

© Coopertec Systems Ltd. 

Rustin Cooper 11th July 2020

 

 

 

 

 

 

About Solar PV

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Our Five Minute Guide

The solar cell turns light photons into electrons by what is called the “photovoltaic” effect.

The rays of photons in sunlight strike the surface of a silicon semiconductor material setting off free electrons from the materials atoms.

The electricity produced is DC direct current at voltages in multiples of 12v, typically 36v.

The electricity can be stored in batteries or converted directly into 220v AC by inverting and transforming the voltage.

Intensity of solar energy reaching the top of the atmosphere directly facing the Sun is about 1,360 watts per square meter.

By the time it reaches the earth surface it is less than 1,000 kw. Factor in the clouds and ambient temperature, considering a UK installation, this is reduced to around 700 watts.

PV solar panels are only 10% to 20% efficient (depending on the type) so that reduces the available power to 150 – 200 watts

This is all per M2.

Shade, dirt and snow will severely reduce or eliminate solar radiation reaching the panel.

Solar PV are typically placed at a fixed angle, directly facing south in UK.

They work at maximum efficiency when the sun’s rays are directly tangential with the panel surface so most of the days in the year they are not working at their maximum efficiency. Sun tracking devises are available to increase the effectiveness of the system but these are expensive.

Considering the UK installations, the intensity of the sun is not the same in all regions, for example Cornwall has an average of 3.16 kWh/m2/day, whereas Norfolk has an average 2.74 kWh/m2/day

Quality of installation plays a big part in the efficiency of the system. Hidden short-cuts like cable sizing, panel to panel shading, inverter efficiency and off-south positioning will reduce the capacity of the system.

Solar power can be used directly from DC for lighting with no complication with feed-in tariffs and no need for an inverter. The downside is new lighting cables have to be installed.

An inverter is needed for AC and restrictions are imposed as this is fed into the grid.

The weak link is the inverter, replacement costs and guarantees should be an inherent part of the price negotiation.

When valuating tenders for a PV installation, consider;

·       All-inclusive maintenance, especially the inverter. Include cleaning in maintenance.

·       Monitor the output regularly

·       Life cycle costing.

·       Positioning and the total M2 area covered

 

 Types of PV panel

 

·       Monocrystalline Silicon Solar Cells

·       Polycrystalline Silicon Solar Cells

·       Thin-Film Solar Cells (TFSC)

The below table is a very brief comparison;

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