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Low Cost Metering Kit for Solar Thermal Systems

SeYe

GreenTech Research GroupUniversitat Politècnica de Catalunya

BarcelonaTech

SeYe

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the problem

SDHWsolar domestic hotwater

collector area(>15 m2)

mature technology

>50.000 Spain

>1Milion World

solar ordinances

+

SDHW Ca>15 m2

2000 2005 2010

=

many systemsnot performing properly

a. low solar energy savingsb. bad reputation to solar thermal

SeYe

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the solution: smart O&M

value chainSDHW systems with collector area > 15 m2

O&MO&M firms, Owners

Energy Agencies

SeYe

a. standardization of O&M (best practices)b. effective and continuous meteringc. continuous communication with all involved bodies:

users, O&M companies and Energy Agencies

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the solution: smart O&M

SeYe

STEP 1: Audit

STEP 2: Low-cost commissioning & SeYe

STEP 3: Maintenance

a. Solar production estimationb. Analysis of mistakesc. Offer to perform de following 2 steps

a.Standardized actions

b.Smart control: alerts, production reports

SeYe

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what is SeYe?

smart ICTintegralsolution

price600 €: device

5 €/month: communication

market Buildings with SDHW systems

(collector area > 15 m2)

customers & prescribersO&M companies

owners and energy agencies

Data logger

To be connected to: control + energy counter

smart metering

post processing software

minimized direct measurements

automatic reporting

daily alerts: email to O&M company

monthly report: owner

monthly integrated report: EAs

cloud basedweb platform www.OmniluS.comexternalized ICT management

compatibilitymetering technologies

best practicesguides, training course, std procedures

commercial technical

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how it works

Main featuresCommunication: hourly produced energy

Electrical overload control

Pressure control

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system status

Status Description

E+ Over production

E- Under production

N No reading

OK System ok

Frecuency of analysisInstantaneous (hourly)

Daily

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system failures

daily alert System failures

E+ •Underestimation of the load and/or produced energy

•Failure in the energy counter

E- •Overestimation of the load and/or produced energy

•Leaks in not monitored loops: loops with pressure switch not

connected to the SeYe or without pressure switch

•Dirt in loops and filters

•Air in loops

•Failure in the energy counter

N •Leaks in the loops with pressure switch connected to SeYe

•Power supply cut

•Low pressure resulting into instantaneous N during the night

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daily alerts report

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monthly performance report

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news 2016-2017

SeYe in catalonia smart labs: Ajuntament AviàMonitoring of two buildings

Patent – SeYe

SeYe communicates with SENTILO

SeYe in Eurosun 2016Comparative experimental analysis of solar thermal energy countersOpen data solar thermal meter for smart cities

SeYe: projecte tractorECREE: Estrategia catalana de renovació energètica d’edificis46 buildings (13 private, 33 public)audit + refurbishment + monitoring + maintenance 3 years

investment return period: 2.8 years

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ECREE: “projecte tractor”refurbishment of 46 systems

jan 2015 – dec 2019

46 buildings (13 private, 33 public)

collector area from 7,2 m2 to 92 m2 (avg: 30,4 m2; total: 1397,2 m2)

total yearly figures

demand: 1.123.000 kWh

solar production: 730.000 kWh

solar savings: 69.345 €

CO2 emissions reduction: 227 Tones

Smart O&M

Step 1: AuditStep 2: Commissioning & SeYe

total investment: 74.289 € (1.615,0 €/instal.; 53,2 €/m2)

Step 3: 3-year maintenance

total cost: 38.945 €/year (27,9 €/year x m2; 846,6 €/year x instal.)

investment return period: 2.8 years

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thank you for your attention!

Low Cost Metering Kit for Solar Thermal Systems

SeYe

RDmes Technologies SL Dr. Eng. Jordi Cadafalch

GreenTech Research GroupUniversitat Politècnica de Catalunya

BarcelonaTechDr. Eng. Rafael Ruiz