RenXSol offers a wide range of products and services.

PV Rooftop

turnkey installation, design, engineering, operation and maintenance of solar photovoltaic based power plants to generate electricity
for offices, factories, institutions, homes, warehouses, builders, apartments, clubs, resorts, hotels, hospitals etc for usage of electricity at LT level at factories
as Net-Metering policy of government exporting power to grid including management of permissions, drawings, approvals
as hybrid system with back up battery system for critical night time use
as portable hybrid power solution for camping, trekking, ore remote areas or emergency power etc.
effective product guarantees of critical items upto 10 years
partnered with world's leading PV modules and Ivnerters meeting IEC standards and having IEC certifications
MNRE channel partner and ICRA rated
feasibility studies for implementation in phases
kW to MW scale of installation for integration to existing processes either captive or third party wheeling, banking, transmission
Integration with synchronization with existing diesel generator and electricity board power for solar prioritization automatically, controlled harmonics
load management solutions with micro-processor and PLC based controls
hand holding from incubation state for large MW scale projects till PPA and execution for supply of power under open access policy of government
calculation of savings against diesel and electricity

Consulting

solutions in each of the above areas from kW scale to MW scale for survey, feasibility, design, engineering, drawings, project management
as owners engineer or lender's engineer for technical study or financial study or both
as project management, supervision, quality checks, testing, third party inspection, design verification, system performance evaluation, operation and maintenance oversight
civil and structural engineering and solutions

Steam Generation

for generation of steam of 150 to 180 deg celsius during day time
auto tracking system with heat collection and remote monitoring of data
storage of highly heated water using steam for overnight usage
steam pressure generation upto 10 kgs/cm2
integration solutions for boilers for process heating
integration solutions for cooking in medium to large scale
enabling huge savings in LPG or diesel or electricity used conventionally
ideal for all factories using steam as well as community kitchens, social missions, religious mutts, ashrams, etc.

Solar Pumps

for irrigation of farms using conventional AC pumps presently
options for drip irrigation and canal based irrigation
can easily be integrated to existing pumps of any HP
high efficiency power generation
auto operation from morning till evening with controls
can be used in hybrid mode also
can be used in controlled mode to charge batteries for overnight usage
can work in absence of electricity board grid or diesel generator

CSR

suited for utilizing corporate CSR funding for environment and renewable energy
can meet objectives of social upliftment for villages
identification of villages done by us including feasibiity studies
can meet village overall development of power generation and heating requirements to meet, drinking water using reverse osmosis solutions, irrigation, community TV or power, street lights, security, providing employment for rural folk etc

Solar Heating Systems and Types

Solar heating systems, convert the heat energy from the Sun into useful energy by heating water or any thermic fluid for use in multiple applications as given below. The heated liquid is stored in an insulated storage unit made of stainless steel or low carbon steel with glass lining or directly transferred to process during daytime without storage. The temperature output varies from 60 degrees centigrade for common low heat applications to 180 degree centigrade for medium heat and process applications using steam.

The heating process for liquids as water or thermic fluids is by conduction heat transfer with further heat exchange transfer depending on the process, application, technology, climatic conditions and storage requirement. The efficiency of solar heaters / liquid heating is generally between 60% to 82% depending on the type of application, process and the technology used.

Generally there are three technologies used by us for heating liquids / water using solar energy for using in various applications. All technologies required shadow free area and are suited for various environmental conditions and locations. These technologies are –

a) Flat Plate Solar Heating systems

Applications using copper or aluminium absorbers to heat water / liquids economically upto temperatures of 80 deg C for domestic or industrial use.

Sectional View of Flat Plate Collector Panel and Heating Technology

b) Glass tube Solar Heating systems

Applications using evacuated glass tube (under vacuum) to heat water / liquids economically upto temperatures of 90 deg C for domestic or industrial use.

Sectional View of Evacuated Glass Tube System and Heating technology

b) Glass tube Solar Heating systems

Applications requiring temperatures upto 150-180 deg C for generating steam, generally for industrial / institutional use.

Photo of Parabolic Solar Heating collector and Technology

Applications of Solar Heating

There are variety of sectors and applications of solar thermal for domestic, industry and institutions, giving huge savings in electricity or diesel usage in segments like –

Bathing application – across all segments for factories, dormitories, hostels, hospitals, pharma sector, homes, apartments etc. for controlled temperatures over 24 hours.
Washing and cleaning application – For washing, cleaning or degreasing of floors or vessels or equipment in canteens, hospitals, laundries, vehicle cleaning etc.
Cooking application – across segments as canteens, hotels, central community cooking centres etc.
Industrial process application – generation of low pressure steam, boiler pre-heating or boiler feed, process heating, bath heating as in textiles, pharmaceutical or automobile industries, etc.
Heat exchange process – as in galvanizing , electroplating, paint shop degreasing etc

Domestic Application Connection Illustrations

A) Typical household flow diagram connections views :

Cold Storage using Photovoltaics

RenXSol Ecotech has developed cold storage systems using solar energy for protecting and keeping agricultural products, dairy products etc. in environmental controlled chamber between 2 to 6 deg Celsius. This protects the products from perishing or decaying. For the farmer, this enables him higher price yield on his produce instead of selling immediately to middlemen. These cold storage chambers are custom designed and generally come with the following specs –

Environmental controlled chamber, of general sizes 6 ft x 6ft x 8 ft capable of handling crop storage of 1 tons by weight or 10ft x 10 ft x 8 feet capable of handling crop storage of 2 tons by weight. Further custom designed sizes can be constructed after knowing requirements.
The floor of the chamber is generally of stone after putting insulating layers beneath or of chequered plate.
Air sealing lock doors provided for access.
Digital display with remote access is provided for studying temperature.
Solar power supports the cooling over 24 hours period.

Solar Drying

The hot air is fed into a chamber as fluidised bed or controlled atmospheric rooms where the produce is kept. Based on the design requirements, various end use applications can be designed for drying produce such as

agri products as vegetables, fruits, used in fruit concentrates, chocolates, by army etc.
spice products as cardamom, chilly, turmeric, etc.., which are also promoted for export grade by Spices Board of India
tea leaves, coffee seeds in plantations
industrial products such as carbide powder, sand, chemicals, detergents etc.
tobacco leaves for making of cigarettes, coir drying and other products
Flowers, grapes, etc. specialised application.

Solar Space heating

This is used again in controlled atmosphere for areas

having cold climates for room or space heating for hotels, institutions, banks etc.
poultry farms to keep the chicks warm (electrical heating used now)
for textile heating wherein pre washed denims etc. are treated with alkali or acid and then force dried prior to packaging and selling.
Green houses for keeping the produce in controlled atmosphere
Mosquito coil or agarbatti drying wherein electric energy is used.
Municipal solid waste treatment by drying wet waste before briquetting.

Solar Evaporation

This is used for evaporating of industrial effluents or such areas wherein the effluents are discharged but require treatment for recovery of any precious material or dried to be used for making sludge cake which is used in construction industry.

Products

a) Flat Plate Solar Heating systems

b) Glass tube Solar Heating systems

b) Glass tube Solar Heating systems